— The new energy cars are becoming popular，but some people are caring about their safety.
— We_______worry about it with the development of modern technology.（　　）

A． mustn't

B． needn't

C． can't

D． shouldn't

【考點】need的用法．

【答案】B

【解答】

【點評】

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發布：2024/5/3 8:0:9組卷：21引用：1難度：0.7

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