3. Fill in each blank with can , can't, could or couldn't:

1. Robots now....... help astronauts perform very difficult tasks.

2. ........ robots recognise our voices five years ago ?

3. I read the book three times, but I .... understand it.

4. I ...... remember his name. Do you know it ?

5. 10 years ago my grandpa ..... ride a horse, but now he can't

6. Our daughter .... read until she was 7 years old.

7. Sorry, I..... help you. I must do my homework!

8. Mozart ....... play the piano when he was only 5 years old

9. We ............ buy any bread because the baker's was closed

10. Jeanny ........... help you plant vegetables. She knows a lot about gardening.

Gerund and To-infinitive
1. If a thing is not worth(do) at all, it is worth(do) well.
2. I'm beginning (understand) what you mean.
3. The boys like (play) games but hate (do) exercises.
4, I can't understand her (behave)like that.
5. It wouldn't be safe (start) down now, we'll have (wait)till the mist clears.
6. I tried ( explain) to him but he refused (listen) and went on (grumble)
7. She likes her children (go) to the dentist every 6 months.
8. I know my hair wants (cut) but I never have time (go) to the hairdresser's.
9.-Why didn't you drink it?

-] didn't like (drink) it as I didn't know what it was .
10. Did you advise him (go)to the police?

-No, I didn't like (give) any advice on such a difficult matter.
11. 1 (like) (bathe)there but there wasn't time.
12. Do stop (talk); I'm trying (finish) a letter.
13. It is usually easier (learn) a subject by (read) books than by (listen) to lectures.
14. Some people seem ( have) a passion for (write) to the newspapers.
15. I resented (bve) unjustly accused and asked him (apologise).
16. He made me (repeat) his instructions (make) sure that I understood what I was
(do) after he had gone.
17.1 keep (try) (make) mayonnaise but I never succeed.

-Try (add)the yolk of a hard-boiled egg.
18. I distinctly remember (pay) him. I gave him $2.
19. It's no good (write) to him. He never answers.
20. I knew I was not the first (arrive), for I saw smoke ( rise) from the chimney.
21. I remember (read) a review of that book and think I (like) (get) it.
22. I hate (borrow) money.
23. I (like) (photograph)it but I had no more film.
24. I (like) (ask) a questionbut I was sitting so far back that I'd be heard.
25. I can remember (be) in hospital when I was 4.
25. This book tells you how (win)at games without actually (cheat).
26. The boys next door used (like) (make) and (fly) model aeroplanes, but they
seem (stop) (do) that now.
27. Don't forget (post) the letter I gave you.
28. There was a lot of traffic but we managed (get) to the airport in time.
29. When I'm tired ,I enjoy (watch) TV. It's relaxing.
30. It was a nice day, so we decided (go) for a walk.
31. It's a nice day;Does anyone fancy (go) for a walk?
32. I'm not in a hurry. I don't mind (wait).
33. They don't have much money. They can't afford (go) out very often.
34. I wish that dog would stop (bark). It's driving me mad.
35. Our neighbour threatened (call) the police if we didn't stop the noise.
36. We were hungry, so I suggested (have) dinner early.

EX1: Present simple - present continuous revison exercises

* các bn điền từ cần điền vào chỗ trống dựa vào các từ trong ngoặc kép nhé

1) You ( enjoy ) .......... this party ? Yes, I ( have )  .............. a great time!

2) Sorry, I can't help you. I (not know) ............... where she keeps her files.

3) I (think).............. your new hat ( look ) ................ nice on you.

4) I can't talk on the phone now . I (drive ) ...................home.

5) You never ( listen) ................... to a word I say ! You always ( listen) ............... to that mp3 player!

6) He ( not understand ) ................... what you ( talk ) about .  He's foreign.

7) How much your suitcase (weigh) ..................? It (look).................. really heavy.

( Thks mn )

Now do the some wuth the sentences below 

1. I can't speak French. I can speak German. _________________________________________

2. You can't go to the park. It is closed.______________________________________________

3. She is thin. She eats a lot. _____________________________________________________

4. Barbara is intelligent. She gets good grades. _______________________________________

5. Michael doesn't study. He geta good grades ________________________________________

6. Richard didn't go to work. He had the flu. ____________________________________

7. I was very nervous. I didn’t pass the driving test. ______________________________

8. Samuel goes to school by bus. I go with him. _________________________________

COMBINE THESE TWO SENTENCES INTO ONE:

1.She can't go to see that film.She is very young (too)

2.The girl is very clver.She can mend this shirt (enough)

3.I can't do this exercise.It is too difficult(enough) 

4. This shirt is too small.I can't wear it (too) 

5. The water is very hot. lan can drink it. (although) 

6. His family is very poor. He goes to school on foot (because) 

7. Huong couldn't go to school. She was very tired. (because) 

8.That man is very old. He can't drive a car. (enough) 

9. I can't talk to you now because. I'm very busy ( too) 

10. They have a lot of money. They live in a small house (although)

Make wish sentences :

1) Lan's friend drivers very fast. She doesn't like this. Lan wishes...

2) I'd like you to keep quiet. You're making so much noise that I can't thick.If only...

3) John is sorry he doesn't know VietNamese. John wishes...

4) My uncle wants to be able to get a job near his house but he can't. My uncle wishes...

5) It's raining. Mary wants togo out, but not in the rain. Mary wishes...

6) It's pity he didn't work harder during the team. His parents wish...

7) My father isn't here now. I want him to be here now. If only...

8) The teacher wants you to work more than talk. The teacher wishes...

9) John would like to be an astronaut when he grows up. John wishes...

10) I'm sorry I couldn't help you yesterday. I wish...

I. Choose the underlined part among A,B,C or D that needs correcting

32 Your \(\)gradfather could speak five languages, could he?

33 she spoke in a very low voice, but I can understand what she said

34 I used to be to stand on my head but I can't br able to do it now

35 The trip was cancelled last week. John couldn't go away because he was ill

II. Complete the questions by adding the tag questions

1. Paul doesn't like football,....

2. You have got a sister,...

3. You haven't done you homework,...

4. You sat next to Helen,....

5 Your name is John,....

6. I didn't leave my wallet on the desk,...

III. Complete the sentences with could was/were or able to n't

1. Jack was an excellent tennis player. He.... beat anybody

2. The fire spread quickly but everyone... escape

3. They didn't have any tomatoes in the in the first shop I went to, but I..... get some in the next shop

4. He can't play tennis very well now but he.......play quite well when he was younger

5. The boy fell into the river but fortunately we........ rescue him

6. She wasn't at home when I phoned but I ...... contact her at her office