... Hang – Tuyên Quang 11 . How are you? a. This is my father, Mr.Tuan. 11 - ........ 12 . Who is this? b. There are 4 people. 12 - ........ 13 . How many students are c. I’m fine, thanks. 13 - ........ there ... - 1. C 2. D 3. A 4. A I I- 5.an 6. are 7. do 8. benches III-9. 11 - eleven 12 - twelve 17 - seventeen 20- twenty 32- thiry- two 10 . 44- forty-four 51- fifty-one 88- eighty-eight 96- ninty- six 10 0- ... 9. 11 .............. ,12 .............., 17 .................., 20..................., 32...................., 10 . 44.............., 51. .............., 88...................,96.................. ,10 0.......................