题目内容
According to the agreement, nobody _______ let out how they spent the three days in the cave.
| A．must | B．may | C．will | D．shall |
D
解析试题分析：考查情态动词：句意：根据协议，没有人可以泄漏他们在山洞里面怎么度过的。Shall可以用于第三，第二人称，表示“命令，警告，允诺，规定”，这里是协议里面规定的，用shall，must必须，may可以，will愿意，选D。
考点：考查情态动词
— Is Jack on duty today?
— It ________ be him. It's his turn tomorrow.
| A．mustn't | B．won't | C．can't | D．needn't |
According to the rules of Daddy, where are we going?, nobody _______ take along with them cash and cell phones.
| A．must | B．may | C．will | D．shall |
This cake is very sweet. You a lot of sugar in it.
| A．should put | B．could have put | C．might put | D．must have put |
I’m really tired of Tom because he ______ keep asking silly questions.
| A．can | B．will | C．must | D．would |
— I didn’t care about what other people thought about me.
— Well, you ________.
| A．should | B．ought to have | C．would have | D．could |
It’s really a great pity that all of you ____ leave so soon. It’s been pretty nice having you all at my birthday party.
| A．should | B．could | C．can | D．might |
A survey has shown that 40% of those killed in traffic accidents _____ if they had been wearing seat belts.
| A．should have been saved | B．must have been saved |
| C．need have been saved | D．could have been saved |