According to the latest study，most traffic accidents be prevented if drivers are careful enough．

A．must B．can C．have to D．need

 

B

【解析】

試題分析：句意：根據(jù)最近的研究，如果司機(jī)足夠小心的話，大部分交通事故都可以防止的。四個(gè)選項(xiàng)的含義分別是：A．must必須，B．can能夠，可能，C．have to不得不， D．need需要，這里使用can表示“有客觀的可能”，所以選B。

考點(diǎn)：考查情態(tài)動(dòng)詞

 

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