题目内容
Malaysia Airlines Flight 370 ___________ course and turned back toward Kuala Lumpur -- but there were no indications from the pilot that he was doing so.
| A．must have changed | B．could have changed |
| C．might have changed | D．should have changed. |
C
解析试题分析：考查情态动词。根据句意：马来西亚的370航班可能改变了航道回到吉隆坡——但是并没有什么迹象表明飞行员要这样做。A肯定干了某事；B本可以干某事；C可能干了某事；D本应该干某事。所以答案选C。
考点：考查情态动词
世纪百通期末金卷系列答案 -Will my car be ready by the end of the day?
-It＿＿＿be, sir. I'll call if there're any problems.
| A．could | B．must |
| C．shall | D．should |
—What did you say to your sister? I saw her crying in the room.
— It _________ my fault. I just said hello to her when I met her, nothing else.
| A．must have been | B．can’t have been |
| C．oughtn’t to be | D．should have been |
You __________be tired—you’ve only been working for an hour.
| A．must not | B．won’t | C．can’t | D．may not |
She is a quiet girl at school，but sometimes she _____ be very naughty.
| A．should | B．would | C．will | D．can |
—Please don’t tell anybody．
—I . I promise．
| A．can't | B．don’t | C．won’t | D．mustn’t |
Sir, you _______ be sitting in this sitting room. It is for women and children only.
| A．oughtn’t to | B．can’t | C．won’t | D．needn’t |
(2014·南通第二次学情调研)—In case anyone ________come in my absence，tell him I will be back soon.
—Sure，I will.
| A．would | B．should |
| C．will | D．shall |
Your teacher ________ very angry at that moment because you talked back to her like that.
| A．should have been | B．must have been |
| C．must be | D．might have been |