Fill in the present perfect simple or the past simple.

1. I      a great film yesterday. (see)
2.        a cheap laptop? (you ever buy)
3.        Sue  the flu last winter. (have)
4.        A few days ago, we  to his uncle. (drive)
5. They          bingo on Wednesday afternoon. (play)
6. He         the bus to get there. (already take)
7. Last week my rabbit         away. (run)
8. We      a lot last Sunday. (do)
9.        in India? (she ever be)
10. I        him last Monday. (meet)
11. She       yet. (not wake up)
12. I        her since last Thursday. (not meet)
13. Bob        well last night. (sleep)
14. I        a letter from her two days ago. (get)
15. They      in Germany. (already arrive)

Write the words in brackets in Past Simple or Past Continuous Tense.

1.Top of Form

1. I (watch)     TV when she (call)     me.
2. He (jump)      into the river and (rescue)        the drowning man.
3. I (see)      my first baseball match while I (live)     in New York.
4. We (ring)     the police because the neighbours (play)    the music very loud.
5. He (write)      the whole homework during the lunch break.
6. We (play)      in the garden when it (start)     to rain.
7. He (meet)     his girlfriend when he (live)     in London.
8. While I (work)      in the hospital I (decide)     to give up smoking.
9. It (rain)     the whole day so we (decide)       to stay at home.
10. The sun (shine)       so we (decide)      to go for a walk.

Complete the sentences with some– or any- + -body/-thing/-where. 

1. I was too surprised to say anything. 

2. There's .... at the door. Can you go and see who it is. 

3. Does .... mind if I open the window?

4. I wan't feeling hungry, so I didn't eat .... 

5. You must be hungry. Would you like .... to eat? 6. Quick, let's go! There's .... coming and I don't want .... to see us. 

7. Sarah was upset about ....

8. This machine is very easy to me. .... can learn to use it very quickly. 

9. There was hardly .... on the beach. It was almost deserted. 

10. "Do you like .... near job?" "No, he lives in another part of town.

Cho tập A = {−1; −3; −5; −7; −9; −11; −13; −15; 1; 3; 5; 7; 9; 11; 13; 15}.Gọi B tập hợp là tất cả các số hữu tỉ dạng a/b có giá trị nhỏ hơn -1, trong đó a, b là hai số tùy ý chọn từ tập A.
Tính số phần tử của tập B.

cho x=3/4+8/9+15/16+...+99/100.Tính x     (/) là phần nha