【題目】 Recently gas ___________in cars, whose price is lower than that of gasoline.

A. is used B. has been used

C. was used D. will use

【答案】B

【解析】句意:最近燃氣已被用于小汽車,燃氣的價格低于汽油的價格。recently 意為最近,和現(xiàn)在完成時態(tài)連用故選B。A項是一般現(xiàn)在時態(tài)的被動語態(tài);C項是一般過去時態(tài)的被動語態(tài);D項是一般將來時態(tài)的主動語態(tài)。

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