Some people waste a lot of food___________ others don’t have enough to eat.A．how

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Some people waste a lot of food___________ others don’t have enough to eat.

A．however

B．when

C．as

D．while

答案

解析

试题分析：原句意思是：一些人浪费许多的粮食，而另外一些人却没有足够的东西吃.however“然而”，“但是”,when“当……时”, as“当……时候”，“一边……一边……”, while“而”，“与此同时”，本句里没有主从关系，所以不选B和C，however的转折语气强，此句是并列地说两件事，根据句意,可知选D.

举一反三

-_______are you going for vacation?
-I am going to Canada.

A．What

B．Where

C．How

D．How long

题型：不详难度：| 查看答案

____ he was very tired, he didn"t stop to have a rest.

A．But

B．As

C．Because

D．Although

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I have a tape player, _______ he doesn’t have one.

A．and

B．but

C．or

D．So

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---- ________ it is late, I shall go home now.
---- OK, go ________.

A．So; down	B．If; up
C．Since; ahead	D．Because; out

题型：不详难度：| 查看答案

I didn’t really enjoy going out the crowded streets.

A．and

B．because

C．but

D．because of

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