情態動詞
c) must have received d) ought to have received9) with all the work on hand, he____ to the cinema last night.a) mustn't go b) shouldn't have gone c) could not go d) couldn't have gone10) eve was late for class again. she ____earlier.a) should get up b) must get up c) need to get up d) should have got up11) i am feeling sick. i____ so much chocolate. a) needn't have eaten b) couldn't have eaten c) mustn't have eaten d) shouldn't have eaten12) i didn't send out my application form last week, but i ____. a) had b) would do c) should have d) might have to13) walking alone in the deserted village, john was scared. he thought he____ tom to go with him.a) might have asked b) should asked c) must have asked d) should have asked14) when i got to the cinema, the film had already started; i____ there earlier. a) ought to get b) ought to have got c) must have got d) must get15) the road was muddy. it____ rained last night.a) must b) must have c) must be d) could have 16) she can speak quite fluent english. she____. a) must been in the u.s.a. for some time b) must have been in the u.s.a. for some time c) should have been in the u.s.a. for some time d) may be in the u.s.a. for some time 17) you should bear in mind that he is not so strong as he____. a) was used to be b) used to be c) was used to d) use to18)“we didn't see him at the exhibition yesterday.”“he ___it.”a) mustn't visit b) can't have visited c) should have gone to see d) may see 19) mary ____my letter, otherwise she would have replied before now.