Many sales representatives prefer to use laptop computers because they are_______for people who travel a lot.

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问题 Many sales representatives prefer to use laptop computers because they are_______for people who travel a lot.

选项 A、convenience
B、conveniently
C、conveniences
D、convenient

答案D

解析 be/become/remain这类动词经常跟形容词,做表语。这里的选项中只有D选项是形容词。如果以名词做表语,必须和主语保持一致。
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