______ is it that metals plays such an important part in our daily life?A．Why B．

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______ is it that metals plays such an important part in our daily life?

A．Why

B．What

C．Where

D．When

答案

解析

略

举一反三

As was expected, only five people turned up at the party, __________ disappointed the hostess very much.

A．which

B．that

C．who

D．where

题型：不详难度：| 查看答案

News came __________ the H1N1 virus may spread more quickly than was thought.

A．when

B．where

C．which

D．that

题型：不详难度：| 查看答案

. Some of the scientists held the point ______ the book said was right.

A．what what

B．that that

C．what that

D．that what

题型：不详难度：| 查看答案

. Put the books back _______ they belong after you have finished them.

A．where

B．to where

C．to which

D．to the place

题型：不详难度：| 查看答案

_____ is known to all, the age _______ children can go to school is seven.

A．What; which

B．It; when

C．As; at which

D．Which; when

题型：不详难度：| 查看答案