___ help the people in the snowstorm in the south made him worried．A．Not known h

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___ help the people in the snowstorm in the south made him worried．

A．Not known how to	B．Unknown what to do to
C．His knowing not how to	D．His not knowing how to

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略

举一反三

______ other good students, the teacher thinks, Alice is _______ student．

A．Compared with; a most satisfied	B．Compared to; the most satisfied
C．Compared with; a most satisfying	D．Comparing to; the most satisfying

题型：不详难度：| 查看答案

With the meal ________, the mother sat down for a good rest．

A．cooked

B．cooking

C．to cook

D．to be cooked

题型：不详难度：| 查看答案

Blog, a shared on line journal where people can post diary entries about their personal experience and
hobbies, ___ more and more popular with people of all ages．

A．becomes	B．become
C．becoming	D．is becoming

题型：不详难度：| 查看答案

___ the invention of the steam engine, the industrial revolution played a vital role in human history．

A．Originating in	B．Originated in
C．To originate in	D．Being originated in

题型：不详难度：| 查看答案

The word "breakthrough" is often used when talking about the newest drug or the next treatment ___ in cancer research．

A．finding

B．being found

C．to be found

D．found

题型：不详难度：| 查看答案