Exercise 20: Given the past form of the following verbs

                  ( Cho dạng quá khứ của các động từ sau )

Ex:          to help – helped                                                               to have – had

                to visit –                                                                               to be –

                to arrive –                                                                           to go–

                to remember –                                                 to buy–

                to return–                                                                           to take–

                to rent –                                                                               to see–

                to receive –                                                                         to think–

                to talk –                                                                                to wear–

                to stop –                                                                              to put–

                to look –                                                                              to eat–

                to move –                                                                            to give–

                to watch –                                                                           to teach–

                to learn –                                                                             to make–

Exercise 21: Complete sentences using the past form of the verbs given

              (Hoàn thành các câu, dùng dạng quá khứ của các động từ đã cho )

buy    ,    take   ,    go      ,     return  , be      ,     wear   ,   eat     ,    receive

1.The seafood_____    very delicious.

2. Hoa_____     a letter from her pen pal Tim yesterday

3. I _____    to the movie theater last night

4. They _____   fish and crab for their lunch

5. Liz ____     _to Ha Noi from Nha Trang two days ago

6. She _____  a blue dress in her last birthday party

7. Mr Robinson_____    his daughter a cap.

8. He _____     his children to the zoo last Sunday

Exercise 20: Given the past form of the following verbs

                  ( Cho dạng quá khứ của các động từ sau )

Ex: to help – helped to have – had

to visit – to be –

to arrive – to go–

to remember – to buy–

to return– to take–

to rent – to see–

to receive – to think–

to talk – to wear–

to stop – to put–

to look – to eat–

to move – to give–

to watch – to teach–

to learn – to make–

Exercise 21: Complete sentences using the past form of the verbs given

              (Hoàn thành các câu, dùng dạng quá khứ của các động từ đã cho )

buy take go return be wear eat receive

1.The seafood_____    very delicious.

2. Hoa_____     a letter from her pen pal Tim yesterday

3. I _____    to the movie theater last night

4. They _____   fish and crab for their lunch

5. Liz ____     _to Ha Noi from Nha Trang two days ago

6. She _____  a blue dress in her last birthday party

7. Mr Robinson_____    his daughter a cap.

8. He _____     his children to the zoo last Sunday

Exercise 18: Write the sentences with the cue words. Use the present perfect tense of the verbs.

Ex:          I / know / her / three months/

I have known her for three months

1. He / have /a cold /a week /

2. They / buy / the house / April.

3. My family / be / here / Christmas

4. We / not see / each other /10 years

5. Mr Clark / work / in the bank/a long time

6. Tom and Joanna / go / to France / last summer

7. My sister / start / a new job / yesterday

8. I/ not eat / in that restaurant / ages

9. Mr Robinson / teach / in this school / 1987.

10. I/write / this letter / six o'clock

Exercise 19: Complete the sentences below with the verbs given in present perfect . Some can be in positive or negative statements

be           eat         read          have   meet    play         try        see        know

Ex:          How is Ann these days?

I've no idea.I haven't met her for two months

1.            Who' s that woman by the door?

I don't know. I_____her before

2.            Are you hungry?

Yes. I_____ much today

3.            Can you play chess?

Yes, but I_____ for ages

4.            Did you enjoy your holiday?

Yes. It's the best holiday I_____for a long time

5.            What' s the book like?

Very interesting. I_____it three times

6.            Is Paris an interesting place?

I've no idea. I_____there

7.            Do you like spaghetti?

I don't know. I_____it

8.            How well do you know him?

Very well. We_____ each other since we were children.

Biết: 72 x 3 = 216

Tích trên thay đổi thế nào nếu: tăng thừa số thứ hai lên 3 đơn vị (thừa số kia giữ nguyên)?

72 x (3 + 3) = ?

Chọn đáp án:

Tích trên sẽ tăng thêm 3 x 3 đơn vị (bằng 216 + 3 x 3 = 225)

Tích trên sẽ tăng thêm 3 đơn vị (bằng 216 + 3 = 219)

Tích trên sẽ tăng lên 3 lần (bằng 216 x 3 = 648)

Tích trên sẽ tăng thêm 3 x 72 đơn vị (bằng 216 + 3 x 72 = 432)

Exercise 17: Complete the sentences. Put   FOR or SINCE  into each gap 
Ex: I have known her FOR three months.
1. It has been raining_____lunchtime.
2. My boss will go away_____the next ten days.
3. I am staying in England_____a year.
4. She has lived in London_____ 1985. 
5. Please hurry up! We have been waiting _____an hour.
6. I have known her _____ January.
7. Nam's father has worked in this company _____20 years
8. Have you learned English _____ a long time?
9. I haven't seen Tom _____we left school.
10. The house is very dirty. We haven't cleaned it_____ ages