1) It's a good idea to eat a lot of fruit a) must b) should c) can d) mustn't 2) You aren't allowed to take photos here. a) must b) should c) can d) mustn't 3) You are obliged to pay your bills. a) must b) should c) can d) mustn't 4) You need to wear a uniform. a) have to b) should c) can d) may 5) I advise you to visit a dentist. a) must b) should c) can d) mustn't 6) Is it Ok if I take your pen? a) could b) should c) can't  d) have to 7) He advised me to take an aspirin. a) should b) could c) can d) mustn't 8) They aren't able to walk. They are babies. a) must b) should c) can't d) mustn't 9) It's necessary for Bill to fill in the form a) have to b) should c) can d) mustn't 10) He is able to speak French. a) must b) should c) can d) mustn't 11) It's possible for George to come here. a) must b) should c) can d) mustn't 12) It's a rule to clean up after your dog. a) must b) should c) have to d) may 13) You don't need to wash the dishes. I'll do it a) have to b) can c) mustn't d) don't have to 14) You are allowed to park here. a) can b) can't c) should d) have to 15) She isn't allowed to go out in the evening a) can't b) don't have to c) must d) shouldn't 16) It isn't necessary for him to clean the table. a) don't have to b) shouldn't c) can't d) mustn't 17) She was able to swim when she was four years old. a) could b) must c) had to d) should 18) It's possible that it rains later. a) may b) must c) should d) have to 19) It's forbidden to paint walls. a) mustn't b) shouldn't c) don't have to d) may not

Modals difficult

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ลีดเดอร์บอร์ด

สไตล์ภาพ

ตัวเลือก

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