精英家教网 > 初中英语 > 题目详情

【题目】What caused the infectious disease remains ____________ (know). We need to do more research on it.

【答案】unknown

【解析】

句意:引起这种传染病的原因尚不清楚。我们需要做更多的研究。

根据句意理解及后句We need to do more research on it.可知,这里表达的是“未知的”,英语是unknown,是一个形容词,在句中放在remains后面做表语,故答案为unknown

练习册系列答案
相关习题

科目:初中英语 来源: 题型:

【题目】—Must we finish all the exercises in a week?

—No, you ________. Just learn thirty new words by heart.

A.needn’tB.can’tC.mustn’tD.shouldn’t

查看答案和解析>>

科目:初中英语 来源: 题型:

【题目】It was a real race time to get the project done. Luckily, we made it.

A.overB.againstC.forD.by

查看答案和解析>>

科目:初中英语 来源: 题型:

【题目】我真后悔弄的这么一团糟,我现在得从头开始。

I really _________________________________and now I have to start all over again.

查看答案和解析>>

科目:初中英语 来源: 题型:

【题目】— Who do you want to help you with the project, Lisa or Luna?

— ________. I want to complete it by myself.

A.EitherB.NeitherC.NoneD.Both

查看答案和解析>>

科目:初中英语 来源: 题型:

【题目】If Steve finishes the job in time, he ____________ (allow) to have three weeks off.

查看答案和解析>>

科目:初中英语 来源: 题型:

【题目】“What’s Ms. Smith’s e-mail address?” Kate asked me. (改写句子,句意不变)

Kate asked me_________ Ms. Smith’s e-mail address_________.

查看答案和解析>>

科目:初中英语 来源: 题型:

【题目】Alice likes swimming, ________ there is no swimming pool near her home.

A.andB.butC.unlessD.because

查看答案和解析>>

科目:初中英语 来源: 题型:

【题目】My sister is a _______ (总的) manager in a big company.

查看答案和解析>>

同步练习册答案