A computer ______ think for itself. It’s always told to do things.A. mustn’t
题型：不详难度：来源：
A computer ______ think for itself. It’s always told to do things.
A. mustn’t B. can’t C. shouldn’t |
答案
| B |
解析
| 因为mustn’t 意为“不允许，禁止”； can’t意为“不可能”； shouldn’t意为“不应该”。此处句子强调的是：电脑不能够自己思考，只能服从人类的指令。所以B合适。 |
举一反三
—Mum, must I wash the dishes right now?
—No, you ____.| A．shouldn’t | B．wouldn’t | C．mustn’t | D．needn’t |
|
Where are you going this month?
We_________ go to Xiamen, but we’re not sure.| A．needn’t | B．must | C．might | D．mustn’t |
|
—Are you in a hurry?
—No, I’ve got plenty of time. I _______ wait.| A．can | B．can’t | C．must | D．mustn’t |
|
—________I have lunch now, Mom?
—No. You must wash your hands first.
A．Would B．May C．Ought to |
-- Must I water the flowers right now?
--No, you . You may do it after supper.
A. mustn"t B. needn"t C. can"t |
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