-–Mary knows the city quite well.
--She______ well have been there before.
| A．need | B．could | C．should | D．may |
—Mr. Smith, why are you always asking me to do the difficult work?
—Because you _______ do such a thing and nobody else is fit for it.
| A．would | B．should | C．can | D．may |
On Sundays ,the retired(退休的）minster_____ come to the farm and work with the farmers.
| A．can | B．should | C． must | D．would |
If you won’t do as I told you, you____ not go to the party.
| A．will | B．can | C．shall | D．need |
Thomas _____ a soldier, for he is much too short.
| A．needn’t be | B． should be | C．may be | D．can’t be |
--- He worked out such different questions at a very young age.
--- Oh, he ______ a very smart student then.
| A．could have been | B．should have been |
| C．might have been | D．must have been |
---I think Helen is at home.
---No, she be at home, for she phoned me from the airport just five minutes ago.
| A．mustn't | B．needn't | C．can't | D．dared not |
– How’s your new class teacher?
– We ______ ask for a better one. All my classmates love him so much.
| A．shouldn’t | B．couldn’t | C．mustn’t | D．needn’t |
—Why did you leave without a word of warning to John?
—But what _____ otherwise? He never listens to me.
| A．could I have done | B．would I do |
| C．must I have done | D．should I do |
If you ___ stick to the unrealistic approach, the worse result will be waiting for you not far ahead.
| A．will | B．may | C．must | D．can |
— Is it good to look up every new word when I come across it in reading?
—No，you _____，because you are likely to guess the meaning from the context,
| A．don't have to | B．shouldn't | C．can't | D．mustn't |
Mr. Baker, a number of students want to see you. _______ they wait here or outside?
| A．Should | B．Will | C．Could | D．Shall |
You ______ be hungry already--- you had lunch only two hours ago!
| A．mustn’t | B．wouldn’t |
| C．can’t | D．needn’t |
It was fine yesterday so I ______ the trouble to carry my raincoat with me.
| A．don’t need to take | B．mustn’t have taken |
| C．didn’t need to take | D．needn’t have taken |
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