... (go) ……………… . to the theater with my family.
9. John and I (be) ……………… . pen pals for many years.
10. We used (write) …………… to each other every month when we (be) …………. at
secondary school.
11.
... (go) ……………… . to the theater with my family.
9. John and I (be) ……………… . pen pals for many years.
10. We used (write) …………… to each other every month when we (be)
…………. at secondary school.
11.
... 10 on my test yesterday.
72.That’s woderful. They (be) …………pleased that you are working hard.
73.He (do) …………his research in the library at the moment.
74.We (not be) …………on time last week.
75. I ... (go) …………if you had a lot of money?
99.If I (be) …………a bird, I (not want) …………to live in a cage.
100 . He had a bad fall while he (repair) …………his roof.
45.The car isn’t here today because Di...
... moment.
73.You usually (watch) TV in the evening?
74.They always (talk) to each other in the weekend.
75. They (play) soccer at the moment.
76.She often (not go) (shop) on weekend.
77.They (not be) classmates.
78.He ... (study) now?
98.Hung and Minh sometimes (meet) each other?
99.Every evening, she (jog) about 3 km.
100 . He always (drive) his car to work. But now, he (ride) his motorbike...
... something.
9. Mother (cook) some food in the kitchen at the moment, she always (cook) in the morning.
10. I always (meet) him on the corner of this street.
11.Where you (go) now?- I (go) to the theater.
12.He ... theater.
12.He (not do) morning exersices regularly.
13.He (do) morning exersices now?
14.Wather (boil) at 100 defrees centigrade.
15.He (meet) the dentist next week.
16.you (be) a...
... moment.
73. You usually (watch) TV in the evening?
74. They always (talk) to each other in the weekend.
75. They (play) soccer at the moment.
76. She often (not go) (shop) on weekend.
77. They (not be) ... morning.
98. Hung and Minh sometimes (meet) each other?
99. Every evening, she (jog) about 3 km.
100 . He always (drive) his car to work. But now, he (ride) his motorbike to work.
ANH VĂ...
...
≤
9)
• Chữ số hàng đơn vị: 10 – x
• Số đã cho có dạng: 10. x + (10 – x) = 9x + 10
• Tích của hai chữ số ấy: x (10 – x)
• Theo đề bài ta có phương trình: (9x + 10) – x (10 – x)= 12
⇔
x
2
– 2 = ...
xy
= 10x + y
• Vì chữ số hàng chục lớn hơn chữ số hàng đơn vị là 2 nên ta có pt: x – y = 2 (1)
• Khi thêm chữ số bằng chữ số hàng chục vào bên phải thì được số mới:
xyx
=100 x +10y...