A) Fill in the blanks with CAN or CAN’T:
1. She is a small baby. She ……………….. eat meat, but she ………………… drink milk.
2. That dress is not expensive. I …………………. buy it.
3. A cat ………………. climb up a tree, but a dog ………………….. .
4. I’m very tired today. I ……………………. clean my room.
5. John is very short. He …………………… play basketball very well.
6. We are very hungry, so we …………………. eat a lot of sandwiches.
7. He is very fat. He …………………… run very fast.
8. We …………………. sleep in the bedroom but we ………………… sleep in the
bathroom.
B) Fill in the blanks with CAN / CAN’T or MUST / MUSTN’T:
1. She is ill, so she ………………………. see the doctor.
2. It’s raining heavily. You …………………… take your umbrella.
3. We ………………………………. (not / pick) the flowers in the park.
4. Mike is nine months old. He ……………………………… (not / eat) nuts.
5. I am very tall. So I …………………… play basketball.
6. I’m sorry but we …………………………………………. (not / come) to your party
tomorrow.
7. You are speaking very quietly. I ………………………………….. (not / understand) you.
8. …………………….. I use your phone?
9. We …………………….. go to the bank today. We haven’t got any money.
10. My hands are dirty. I ……………………….. wash them.
11. It’s late. I …………………………. go now.
12. You ………………….. stop at a red traffic light.
13. You ………………………………….. (not / speed) in the city.
14. Tourists ……………………… take their passports when they go abroad.
15. Footballers …………………………………….. (not / touch) the ball with their hands.
16. ……………………… you play the guitar?
17. I ……………………………………… (not / come) with you now. Because I’m studying
my lessons.
C) Use MUST / MUSTN’T / HAVE TO or (NOT) HAVE TO:
1. I can stay in bed tomorrow morning because I ………………………………………work.
2. Whatever you do, you ……………………. touch that switch. It’s very dangerous.
3. You ………………….. forget what I told you. It’s very important.
4. We ………………………………….. leave yet. We’ve got plenty of time.
5. Ann was feeling ill last night. She ………………………. leave the party early.
6. I ……………………….. go to the bank yesterday to get some money.
7. The windows are very dirty. I …………………….. clean them.
8. The windows aren’t dirty. You ………………………………… clean them.
9. We arrived home very late last night. We …………………….. wait half an hour for a
taxi.
10. These cakes are very nice. You …………………… have one.
11. We ………………………………….. take an umbrella. It’s not going to rain.
12. This is a secret. You ……………………………… tell anybody.
13. You ……………………………….. buy a newspaper. You can have mine.
14. This train doesn’t go to London. You …………………………… change at Bristol.
15. In many countries men ……………………………… do military service.
16. Sarah is a nurse. Sometimes she ………………………… work at weekends
Respuestas
Fill the blanks with "Can" or "Can't"
1. She is a small baby. She CAN'T eat meat, but she CAN drink milk.
2. That dress is not expensive. I CAN buy it.
3. A cat CAN climb up a tree, but a dog CAN'T.
4. I’m very tired today. I CAN'T clean my room.
5. John is very short. He CAN'T play basketball very well.
6. We are very hungry, so we CAN eat a lot of sandwiches.
7. He is very fat. He CAN'T run very fast.
8. We CAN sleep in the bedroom, but we CAN'T sleep in the bathroom.
Fill in the blanks with CAN / CAN’T or MUST / MUSTN’T:
1. She is ill, so she MUST. see the doctor.
2. It’s raining heavily. You MUST take your umbrella.
3. We MUSTN'T PICK (not / pick) the flowers in the park.
4. Mike is nine months old. He CAN'T EAT (not / eat) nuts.
5. I am very tall. So I CAN play basketball.
6. I’m sorry, but we CAN'T COME (not / come) to your party tomorrow.
7. You are speaking very quietly. I CAN'T UNDERSTAND (not / understand) you.
8. CAN I use your phone?
9. We CAN'T go to the bank today. We haven’t got any money.
10. My hands are dirty. I MUST wash them.
11. It’s late. I MUST go now.
12. You MUST stop at a red traffic light.
13. You MUSTN'T SPEED (not / speed) in the city.
14. Tourists MUST take their passports when they go abroad.
15. Footballers CAN'T TOUCH (not / touch) the ball with their hands.
16. CAN you play the guitar?
17. I CAN'T COME (not / come) with you now. Because I’m studying
my lessons.
Use MUST / MUSTN’T / HAVE TO or (NOT) HAVE TO:
1. I can stay in bed tomorrow morning because I DON'T HAVE TO work.
2. Whatever you do, you MUSTN'T touch that switch. It’s very dangerous.
3. You MUSTN'T forget what I told you. It’s very important.
4. We DON'T HAVE TO leave yet. We’ve got plenty of time.
5. Ann was feeling ill last night. She HAS TO leave the party early.
6. I HAVE TO go to the bank yesterday to get some money.
7. The windows are very dirty. I MUST clean them.
8. The windows aren’t dirty. You DON'T HAVE TO clean them.
9. We arrived home very late last night. We HAVE TO wait half an hour for a taxi.
10. These cakes are very nice. You MUST have one.
11. We MUST take an umbrella. It’s not going to rain.
12. This is a secret. You MUSTN'T tell anybody.
13. You DON'T HAVE TO buy a newspaper. You can have mine.
14. This train doesn’t go to London. You HAVE TO change at Bristol.
15. In many countries, men MUST do military service.
16. Sarah is a nurse. Sometimes she HAVE TO work at weekends
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