28. The reason for his success is ______ he worked very hard.A．whyB．thatC．whethe

题型：不详难度：来源：

28. The reason for his success is ______ he worked very hard.

A．why

B．that

C．whether

D．How

答案

解析

略

举一反三

32. It’s important to listen to your teacher carefully in class, so try not to let your mind _________.

A．lose

B．stop

C．wander

D．Disturb

题型：不详难度：| 查看答案

33. Is it the letter you got yesterday ________ makes you so sad?

A．what

B．that

C．how

D．When

题型：不详难度：| 查看答案

34. －Are you sure you have to? It’s been very late.
－I don’t know ________ I can do it if not now.

A．how

B．what

C．when

D．That

题型：不详难度：| 查看答案

6. The factory has to stop working for a day _________ the machines can be cleaned.

A．in case

B．supposing that

C．the moment

D．so that

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24. It was at twelve o’clock___we finally arrived at the village____we spent our happy childhood.

A．that; that

B．when; that

C．when; what

D．that; where

题型：不详难度：| 查看答案