问题

It is widely believed among bioengineers _____ it will be possible to create life under laboratory conditions．

A:which
B:what
C:that
D:when

正确答案是：

同类题型

My father likes tea nothing in it.

下列各组句子中加横线的词语，解释有误的一项是（）

What _____ be done at any time will be done at no time.

I first met John at my sister’s wedding. He _________with the bridegroom at the time.

Why didn’t you tell me about the meeting? —-I ______ tell you the day before yesterdayYou just forget it