精英家教网 > 高中英语 > 题目详情

【题目】Children should be warned that it’s dangerous to open the microwave oven ________ it is still working.

A. until B. after

C. before D. while

【答案】D

【解析】A. until直到;B. after之后;C. before在…之前;D. while在…期间虽然与…同时。句意应该警告孩子,当微波炉工作的时候,打开它是很危险的。根据句意可知选D。

练习册系列答案
相关习题

科目:高中英语 来源: 题型:

【题目】—So are you saying that some scientists don’t believe in the greenhouse effect?

—No,I wouldn’t go that far.In fact,without the greenhouse effect the planet frozen.

A. has been B. would be

C. will be D. would have been

查看答案和解析>>

科目:高中英语 来源: 题型:

【题目】____________ such a good chance, how could she let it slip away?

A. Having been given B. Having given

C. To being given D. To have given

查看答案和解析>>

科目:高中英语 来源: 题型:

【题目】Hardly ___________the door when he rushed into the office out of breath.

A. I opened B. did I open

C. I had opened D. had I opened

查看答案和解析>>

科目:高中英语 来源: 题型:

【题目】The record was a big ________ and sold a million copies.
A.trend
B.trick
C.hit
D.medal

查看答案和解析>>

科目:高中英语 来源: 题型:

【题目】It was __________ that they all went swimming in the river.
A.such a hot weather
B.such hot weather
C.so hot weather
D.so hot a weather

查看答案和解析>>

科目:高中英语 来源: 题型:

【题目】She __________down her book and __________in bed.
A.lay; laid
B.laid; lay
C.lay; lay
D.laid; laid

查看答案和解析>>

科目:高中英语 来源: 题型:

【题目】__________ he didn't help me with my work instead,just __________.
A.In a way; in my way
B.On a way; on the way
C.In the way; on the way
D.By the way; on my way

查看答案和解析>>

科目:高中英语 来源: 题型:

【题目】Wang Hua is said ______ a new computer programme recently, but I don’t know when she will finish it.

A. to desogn B. to be designing

C. to have been designing D. to have designed

查看答案和解析>>

同步练习册答案