51. Don't forget (post) _____________ the letter I gave you.
52. I wonder where Linda is. She promised not (be) _____________ late.
53. What do you want (do) _____________ later?
54. Minh suggested (have) _____________ a video conference this week.
55. I'm still looking for a job, but I hope (find) _____________ something soon.
56. Quang Ngai was (hit) _____________ by a severe storm last year.
57. If the air (not pollute) _____________ people's physical condition will be better.
58. My brother (not/ play) _____________ any match since last month.
59. If you had magic, what _____________ you(do) _____________to stop pollution?
60. Minh (finish) _____________ his housework before I went home.
