题目

1.Only when the research has been carried out______whether the drug has a side effect on human body.
A.we decide B.we will decide C.did we decide D.will we decide
2.It was not until ge explained the reason _____we realized that we had misunderstood him
A.why B.which C.that D.whether
3.-Chemistry can help solve the pollution .What about math?
-_______.But you must admit that we can't study chenmistry without math
A.Never mind B.It's hard to say
C.Cheer up D.Well done.

提问时间：2021-04-09

答案

1.Only 位于句首,很明显是一句倒装句嘛.部分倒装.when引导的从句不用倒装,主句倒装,所以再根据时态,D.2.这是一句it is ...that的强调句.判断句子是不是强调句的方法就是把it is ...that 拿掉,然后看句子是否完整.很...