... công thức phân tử của X biết 0 ,41 04g X khi làm bay hơi thu được thể tích khi đúng bằng thể tích của 0,0552g hỗn hợp hơi ancol etylic và axit fomic đo cùng điều kiện 4 b. dd mantozo có tính khử ... phản ứng vớia. AgNO3/NH3b. kim loại K c. anhidrit axetic d. Cu(OH)2/OH-, to3. Cho xenlulozo phản ứng với anhidrit axetic có H2SO 4 đặc làm xúc tác thu được 11,1g hỗn hợp X gồm ... Viết các phương trình phản ứng theo sơ đồ chuyển đổi sau:a. C2H 4 nHKMnOSOHNHAgNOtEOHOHClOHCCOGFCHODA )()(51062//2,/ 44 23322→ → → → → →→+−+++°++b. tinh bột...
... more,comfort able than__ the other one. (comfortable)3 I think this shop is…………………………… that one. (good) 4 The restaurant is………………………………… the cafe, (expensive5 Simon's ……………………….Mark, (old)6 I think ... was…………………………………. mine, (bad)13 This film is ……………………………the one you wanted to see.(interesting) 14 The journey is …………………………………… I thought, (long)15 This lesson is…………………………………… the last one....
... My aunt regrets …………………………………………… ………………………….………………………………………… 4. “Be careful of strangers and don’t go out at night.” My parents advised me …………………………………………………………………………………….……………….…… ... words or the verbs in parentheses. 1. The government is making suitable plans for __________ development in each areaof the country.(EDUCATION)2. In the summer, most of students want to become ... helpers. (VOLUNTEER)3. Taking part in the _________ helped me improve my self-confidence.(COMPETE) 4. If more people used bicycles, there ________ so much pollution. (NOT BE)II. Reading Comprehension:1....
... give D. have given III. Grammar: Supply the correct form of the words in parentheses. 1. Trinh Cong Son was a famous _________ in Vietnamese music. (COMPOSE)2. Dinosaurs have been _________ ... (EXTINCTION)3. “The Spy Return” is a very ________ film about a wealthy man who visits Italy. (EXCITE) 4. We are having a party _________ my sister’s birthday. (CELEBRATION)IV. Reading Comprehension:1....
... ________services. (SOCIETY)3. I wish I had enough money __________ a new bicycle for my younger sister.(BUY) 4. A new hospital for the poor ___________ in this city at the moment. ( BUILD)IV. Reading Comprehension:1. ... especiallyconsidering his short life. By the time Mozart __(c)_____ at the age of 35, he had completed 41 symphonies, 27 piano concertos, 23 string quartets, 17 piano sonatas, 7 major operas, andnumerous...
... ballet, emerged as an exhibition sport at the Olympic Games from 1 948 to 1968, then debuted as a full medal sport at the 19 84 Olympic Games in Los Angeles. It is open only to women, with medals ... was considered an official sport tournament atA. the 1 948 Olympic Games B. the 1968 Olympic GamesC. the 1980 Olympic Games D. the 19 84 Olympic Games37. Synchronised swimming is a kind of water ... furniture in our living room.A. is too much B. is too many C. are too much D. are too many21. In 1 941 , the AAU officially accepted synchronized swimming as a ……… sport for team events.A. competition...
... information. 41 . a. contribute b. gather c. collect d. gain 42 . a. Make b. Set c. Take d. Pick 43 . a. discuss b. encourage c. suggest d. define 44 . a. spend b. apply c. train d. waste 45 . a. a ... the d. no article 46 . a. explore b. explorer c. exploration d. explorative 47 . a. inquire b. tell c. require d. ask 48 . a. submitted b. handed c. sent d. communicated 49 . a. inhale b. breathe ... search for well-researched material that can help you grow.We should (4) ______ our children to read more books and (44 ) ______ less time watching TV. Some people have commented that this...
... Exercise 4 . Complete the dialogue.a.Daisy : Hello, Lee. (1) are you ?Lee : I’m very (2) , thank you. How (3) you?Daisy : (4) , thanks. Lee, This is Peter. (5) ... e m i r 4. E i n d r f 5. N c h f e r Exercise 2. Read and complete the sentences.1. Mai is from Viet Nam. She is Vietnames.2. LiLi is from She is 3. Peter is from He is 4. Linda is ... ? 4. Peter / America / American ? ? Exercise 6. Reorder to make sentences.1. Linda / my / is / name. 2. Canberra / from/ am / I . 3. Meet / Peter / you / to / nice 4. Name...
... 56UNIT 14 145 . _______are you going to do this summer vacation ?A. When B. Where C. What D. When 146 . She is going to stay ______her aunt and uncle .A. at B. with C. in D. between 147 . _______ ... B. very long C. long D longest 43 . There isn’t milk in the bottle.A. an B. any C. a D. some 44 . I’d like some rice. I’m .A. hungry B. hot C. thirsty D. full 45 . My friends usually go in the ... _ 70,000 dongs.A. How much B. How manyC. Which D. How 143 . _________bananas do you need ?A. How B. How manyC. How much D. What 144 . How much rice do you want ? _ _______________A. Yes ,...
... sentence. 7. I (come) and (see) you before I leave here. BT TIẾNGANH 10 - BÀITẬPTIẾNGANHLỚP 10 EXERCISES (TENSES) P4 VII. Give the right forms of the verbs in brackets: Past tenses. ... rain (stop). 2. I (stay) here until he (answer) me. 3. Wait until I (catch) you. 4. She (not come) until you (be) ready. 5. Miss Helen (help) you as soon as she (finish) that ... (visit) England in 1970. 3. When John and I got to the theatre, the movie (start) already. 4. Before Alice (go) to sleep, she (call) her family. 5. When the phone (ring), I (have) dinner....
... I (see) that film several times because I like it. BT TIẾNGANH 10 - BÀITẬPTIẾNGANHLỚP 10 EXERCISES (TENSES) I. Supply the correct verb forms: The simple present ... for two hours, but she (not come) yet. 3. They (live) in Ho Chi Minh City since 1975. 4. She (read) all the books written by Charles Dickens. How many books you (read)? 5. He (not, ... seldom (eat) before 6:30. 3. Look! A man (run) after the train. He (want) to catch it. 4. The Sun (set) in the West. 5. It (be) often hot in summer. ...
... (learn) English? 13. I (be) sorry. I (forget) that girl's name already. 14. I (wait) for the manager for two hours. 15. You (ever, see) a lion? IV. Supply the ... 1. I (see) her before. 2. I (see) her last year. 3. Tom never (be) in Hanoi. 4. I (read) the novel written by Jack London several times before. 5. What you (do) yesterday?...
... (sit) down and (rest). 7. Before she (watch) TV, she (do) her homework. BT TIẾNGANH 10 - BÀITẬPTIẾNGANHLỚP 10 EXERCISES (TENSES) P3 V. Supply the correct verb form: Simple past or ... (already, see) Dr. Rice. 3. When we came to the stadium, the match (already, begin). 4. They told me they (not, eat) such kind of food before. 5. He (ask) why we (come) so early. ... we (have) dinner. 3. Bill (have) breakfast when I (stop) at this house this morning. 4. As we (cross) the street, we (see) an accident. 5. Tom (see) a serious accident while he...
... 41 . You (remember) my name or you (forget) it someday? 42 . Tom (study) chemistry for three years and then he gave it up. 43 . Miss Lee often (write) when she was on holiday. 44 . ... 46 . When the teacher came in, the pupils (play) game. 47 . Columbus (discover) America more than 40 0 years ago. 48 . By next month, I (finish) my first novel. 49 . By May ... 4. My father (not watch) TV every night. 5. I (meet) Authur three weeks ago. 6. Yesterday the police (report) that they (capture) the thief. BT TIẾNGANH 10 - BÀITẬPTIẾNG ANH...
... 84. Mr. Jackson (paint) his house since last month. 85. She (ask) me to tell about him several times. 86. The audience (listen) to everything he said last night. 87. At 4 p.m ... station at 5 p.m. 100. Up to now, the teacher (give) our class five tests BT TIẾNGANH 10 - BÀITẬPTIẾNGANHLỚP 10 EXERCISES (TENSES) P6 XI. Supply the correct verb forms. (CONT) 51. Bill ... I (work) in my office at that time. 88. A: I (play) football when I was 5 years old. 94. Please be quiet! I (work). 95. When I (be) a child, I (want) to be a doctor. 96. David...