24. The Niagara Waterfalls, ______ is shaped like a semicircle, are 670meters wi

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24. The Niagara Waterfalls, ______ is shaped like a semicircle, are 670meters wide, and fall 56 meters in an awesome white sheet of water.

A．what

B．where

C．the largest of which

D．in which

答案

解析

略

举一反三

____ enters the computer rooms should take off his shoes in order to keep them clean enough.

A．Who

B．Whoever

C．What

D．Whatever

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A．what

B．which

C．where

D．that

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________the term has come to an end, I’m going to rest for a few days and then take a trip to relax myself.

A．As though

B．Even if

C．Now that

D．So that

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A．that

B．who

C．which

D．what

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A．that

B．which

C．as

D．what

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