文档介绍：情态动词
____ change water into a gas, but we ___ first heat it to its boiling point.
A. must, can B. may, needn't C. can, must D. need, may
door stood open and everything was in disorder. The room ____.
A. must be broken into B. must have been broken into
C. must be broken D. could be broken into
repeat the sentences?
A. Will I B. Would you like that C. Shall I D. Do you want that I
you please lend me your mew motorcar? Yes, I _____.
A. can B. may C. would D. will
. White, many students want to see you, ____ they wait here or outside?
A. will B. shall C. are D. do
must be a mistake. No, it ____ a mistake.
A. cannot be B. must not be C. needn't be D. would not be
you don't like to swim, you ___ stay at home.
A. may well B. might be well C. might very well D. might as well
didn't see her at the meeting yesterday. She ____ it.
A. can't have attended B. needn't have attended C. mustn't have attended D. mustn't attended
the story be true? I hardly believe it.
A. May B. Would C. Must D. Should
10. Need I do it once more? ________.
A. Yes, you need B. Yes, you must C. No, You mustn't D. No, you don't
11. Speak clearly so that they ____ you.
A. must understand B. may understand C. might understand D. understand
12. When are you going to return my novel? Don't worry. You ____ have your