题目内容
It has been announced that all the students ____ put on masks before going to school in case they are infected with SARS virus.
| A．shall | B．will | C．need | D．may |
A
解析试题分析：考查情态动词：句意：已经宣布所有的学生在上学前要戴面具以防感染SARS病毒，表示：规定或法律条文等用shall 语气强烈，will“意愿”，need“需要”，may“可以”，选A。
考点：考查情态动词
They have got lost, or had an accident.
| A．can | B．might | C．must | D．mustn’t |
―Do you know where David is? I couldn’t find him anywhere.
―Well. He ______ have gone far — his coat’s still here.
| A．needn’t | B．can’t | C．mustn’t | D．wouldn’t |
—— It's no easy task to catch a ticket on a website that receives l billion clicks daily．
一一I can’t agree with you more．There be errors for every single step
| A．should | B．must | C．can | D．will |
— _______ I ask you something, if you are not busy?
—Yes, of course you _______.
| A．Should; should | B．Could; can |
| C．Could; could | D．Can; Could |
--The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the job?
--________ my students have a try?
| A．Should | B．Shall | C．Will | D．May |
When we were young, every evening my brother and I ___ stay at home waiting for my mother?
| A．might | B．would | C．should | D．could |
That truck nearly hit me; I ______.
| A．might be killed | B．may been killed |
| C．may be killed | D．might have been killed |
----I missed the first part of the film. It was really a pity．
----You _____home half an hour earlier.
| A．should have left | B．must have left |
| C．should leave | D．must leave |