Cho đúng dạng từ trong ngoặc

31. While Tom (read)……., Amely (watch)……………………. a documentary on TV.

32. While the parents (have)……………………. breakfast, their children (run)……………………. about.

33. Martha (turn)……………………. off the lights and (go)……………………. to bed.

34. When I (do)……………………. the washing-up, I (break)……………………. a plate.

35. While Tom (play)……………………. the piano, his mother (do)……………………. the washing-up.

36. He (drink)……………………. some juice and then he (eat)……………………. a few chips.

37. I (have)……………………. dinner when I suddenly (hear)……………………. a loud bang.

38. When my father (work)……………………. in the garden, an old friend (pass)……………………. by to see him.

39. She (go)……………………. to school, (take)……………………. out her textbook and (begin)……………………. to learn.

40. When it (start)……………………. to rain, our dog (want)……………………. to come inside.