`(-1)/1.3+(-1)/3.5+(-1)/5.7+...+(-1)/99.101`

đọ lại đề đi em 

Bài 1: Khoanh vào phương án thích hợp để đặt trong các câu điều kiện loại 1 dưới đây.

1. If she (reads/read) in bad light, she will run her eyes.

2. If I find your book, I (will phone/ could phone) you at once.

3. I will get angry if you (make/ will make) more mistakes.

4. If you don’t believe what I said. (ask/ will ask) your father.

5. If I study hard, I (pass/ will pass) this year’s exam.

6. If the weather is fine, we (go/ will go) on a picnic.

7. If I (go/ will go) to Paris, I will visit the Eiffel Tower.

8. If they don’t invite me, I (don’t go/ won’t go).

9. If he (got/ gets) my email, he will send the information we need.

10. If she travels to London, she (will visit/ visits) the museums.

11. If I (will get/ get) the money, I will buy a mobile phone.

12. If you make trouble, I (will send/ will sent) you to the principal.

13. If I (had/ have) enough time this evening, I will watch a movie.

14. If he has money, he (will lends/ will lend) me what I need.

15. If you (eat/ will eat) greasy food, you will become fat.

16. If your sister goes to Paris, she (has/ will have) a good time.

17. If he (will do/ does) that, he will be sorry.

18. If I leave now, I (will arrive/ arrive) in New York by 8:00 pm.

19. You (won’t do well/ don’t do well) on your test if you don’t study.

20. They won’t know the truth if you (won’t tell/ don’t tell) them.

21. If I bake a cake, (will you/ do you) have some?

22. If he (will call/ calls) you, will you answer the phone?

23. If you don’t go to the party, I (am/ will be) very upset.

24. If you get a haircut, you (will look/ look) much better.

Viết số thích hợp vào chỗ chấm

.a, 3/4 phút = .45... giây                                      b, 495 phút = ...8giờ ...15. phútc, 1,2 giờ = .72.. phút                                           d, 2 ngày 6 giờ =    54.. giờ

A