21. The bags (hang) ..hang.. on the wall are our team's

số nhiều + hiên tại đơn

22.The story ……………… by my teacher is very interesting.

⇒is told 

23. The students discussed the problems causing . the pollution(cause)

discuss +V_ing

24.Originally, the book (write) was written in English, and a few years later is (translate) translated  into several languages.

25. Angkor Wat and Angkor were  constructed in Cambodia several centuries ago. (construct)

câu bị động thì quá khứ

26.The Golden Gate Bridge in San Francisco was completed  in 1973. (complete)

câu bị động thì quá khứ

27.When (your father/ give up)did your father give up smoking?

28. The Greens has lived in this city for 10 years. (live)

thì HTHT do có từ "for"

29.Our teacher has explained to us how to use the printer already. (explain)

thì HTHT do có từ "already"

30.Mai have not finished the homework yet. (finish)

câu bị động thì hiện tại hoàn thành 

31. The match has just started. Our team are playing well. (just start)

32.Her cousin used to collected stamp when he was a boy. (collect)

sau used to +V

33.Children enjoy reading picture books. (read)

sau enjoy+ V_ing

34.History was taught  in my school by Miss Lan last year. (teach)

câu bị động thì quá khứ

35. She used a pencil to write  this letter.

chỉ mục đích + toV

36. Maria ______has studied________ English for 5 years, now she ______is a master of________ it yet. (study / master)

37. This book was sent to me yesterday. (send)

câu bị động thì quá khứ

38.If you come here in Spring, you will have a chance to go to the village fair. (have)

câu điều kiện loại 1

39.The books in the library were arranged into sections. (arrange)

câu bị động thì quá khứ

40. The card catalogue is helpful in finding  the books you find. (find)

sau giới từ +V_ing