1.     Hai (have) his breakfast when I stopped at his house this morning.

2.     They just (phone) to stay that they (not come) back till tomorrow.

3.     She (have) a headache for several hours.

4.     I ( watch) a cartoon movie on TV when you called last night.

5.     I (be) happy if I pass my exam.

6.     He (not eat) anything for a day.

7.     Wilson L. Judson ( invent) the zipper in 1893.

8.     We are much interested in (work) with him soon.

9.     If he comes late,  the teacher (not let) him in.

10.  She (work) in the library lat night.

11.  What about ( take) a shower to instead of a bath to save energy?

12.  Why don’t we ( stop) doing this work?

13.  Would you mind ( turn) on the TV?

14.  We try to study hard in order (make) our parents happy.

15.  My mother left without saying a word so as (not disturb) me.

16.  My father (drive) Toyota’s car  since 2006.

17.  All new clothes (sell) last month.

18.  They (be) pan pals since they left school.

19.  We are interested in (play) badminton after school.

20.  If she (study) hard, she will pass the exam.

21.  If today (be) Sunday,  I would visit my grandparents.

22.  Her mother isn’t use to ( stay) up late.

23.  Hung used (cry) when he was small.

24.  We (write) to Nam since last month.

25.  If you (get) up early, you won’t be late for school.

26.  My friend (finish) his report yesterday.

27.  Mrs. Thuan (type) these exercises for her students at the moment. I think she (finish) her work tomorrow.

28.  She likes (teach) her daughter- Nhi how ( ride)  her bike in her free time.

29.  If we pollute the water, we (have) no more fresh water to use in the future.

30.  I suggest ( save) energy.

31.  If he learned harder, he (get) good marks.

32.  How about (make) some posters on energy saving?

33.  He (not come) here yet.

34.  When I came home, my mother (prepare) our lunch for us.

35.  A new book (buy) by my son yesterday.

36.  Some students in my school (be) very lazy every day. They always (talk) in class.

37.  My mother advised me ( not buy) that shirt.
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