精英家教网 > 初中英语 > 题目详情

【题目】Students be careful when they do chemical experiments in the laboratory.

A.mustB.mayC.needD.can

【答案】A

【解析】

句意:学生们在实验室做化学实验时必须要小心。

考查情态动词。must必须、一定;may可以;need需要;can能、会。根据语境,可知当学生们在实验室做化学实验时“必须”要小心,否则会有生命危险,所以must符合题意,故答案选A

练习册系列答案
相关习题

科目:初中英语 来源: 题型:

【题目】When she got to the station, the bus________for 10 minutes.

A.has been awayB.had been awayC.left

查看答案和解析>>

科目:初中英语 来源: 题型:

【题目】我想知道该如何指出他的缺点。

I wonder ________ ________ ________ ________ his shortcoming.

查看答案和解析>>

科目:初中英语 来源: 题型:

【题目】Linda is a __________ leader in our group. She is always active in dealing with problems. (confidence)

查看答案和解析>>

科目:初中英语 来源: 题型:

【题目】The little girl a yellow T-shirt is my cousin from Canada.

A.ofB.inC.atD.by

查看答案和解析>>

科目:初中英语 来源: 题型:

【题目】 convenient it is to communicate with each other through Wechat!

A.WhatB.What aC.HowD.How a

查看答案和解析>>

科目:初中英语 来源: 题型:

【题目】We should protect the endangered wild animals, or they will d________ in the near future.

查看答案和解析>>

科目:初中英语 来源: 题型:

【题目】Wonder Woman ______ for 15 days and many of us like the film very much.

A.beganB.has begunC.has been on

查看答案和解析>>

科目:初中英语 来源: 题型:

【题目】The environment is becoming even________ (bad) now because of the pollution.

查看答案和解析>>

同步练习册答案