—Where _____ Mary have put the empty bottles?
— She _____ them away. They must be somewhere.
| A．can; can’t have thrown | B．must; needn’t |
| C．must; must have thrown | D．can; mustn’t have thrown |
I think that's unlikely to happen, but if that ______ occur, both America's and China's interest would be severely damaged.
| A．should | B．could | C．would | D．might |
—I can’t find my mobile phone anywhere.
—You _____ have lost it while eating out.
| A．may | B．need | C．would | D．should |
We consider it necessary that a plan _______ before doing the work.
| A．is made | B．will be made | C．should be made | D．made |
The driver tried everything he could think of, but the car just ______ not move.
| A．should | B．might | C．must | D．would |
---- Would you rather____there tomorrow?
----____ No. I’d rather he ____there instead of me.
| A．go;went | B．to go ;will go | C．go;will go | D．going;shall go |
“Mary looks hot and dry.” “So _____ you if you had so high a fever.”
| A．do | B．would | C．will | D．are |
If Doric continue doing things like that, he _______ face the music one day！
| A．can | B．should | C．would | D．shall |
One of our rules is that every student wear school uniform while at school.
| A．might | B．could | C．shall | D．will |
---These grapes look really beautiful.
----They ______! See the price $3.99 a pound. Very expensive, aren’t they!
| A．would | B．could | C．might | D．should |
Helen ____ go on the trip with us, but she isn’t quite sure yet.
| A．shall | B．must | C．may | D．can |
— When shall we meet your cousin at the station?
— His plane took off two hours ago, and it reach at 5 pm.
| A．should | B．could | C．must | D．can |
---Could I have a word with you, mum?
---Oh, dear, if you______.
| A．can | B．must | C．may | D．should |
--May I pick a flower in the garden?
--No, you _________.
| A．needn’t | B．mustn’t | C．can’t | D．won’t |
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