Scientists still wonder ______ cloning will help or harm us and _____ it is lead
题型：不详难度：来源：
Scientists still wonder ______ cloning will help or harm us and _____ it is leading us.| A．that; what | B．whether; where | | C．if; that | D．whether; how |
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答案
| B |
解析
| wonder带两个宾语从句第一个从句不缺成分需一个起连接作用的词，第二从句缺少状语。 科学家想知道克隆对我们有害还是有助并且它要把我们带向何方。选B |
举一反三
| He was very rude to the Customs officer, _____ of course made things even worse. |
| The man remained __________ he was and waited for his wife who was shopping in the market. |
It seems that I have seen this man somewhere before, but now I can’t remember I came across him.| A．where was it that | B．where it was that | | C．that it was where | D．that was it where |
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After waiting for seemed to be a century , a doctor came out from the operation room and informed us everything was OK.
A which B what C it D that |
______some people dislike may be others’ favorite.| A．Whether | B．What | C．That | D．How |
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