The driver who died in the accident _________, but he didn’t wear the seat belt.

A. could survived B. could have survived

B. must survived D. must have survived

B

【解析】

試題分析：考查虛擬語氣。could have done表示過去本可以做而未做；must have done表示過去肯定做了某事。句意：在事故喪生的司機本來可以活下來，但是他沒有系安全帶。根據(jù)句意，故選B。

考點：考查虛擬語氣。

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