题目内容

【题目】This is one of the best novels which once popular among students.

A.are

B. is

C. were

D. was

【答案】C

【解析】 one of+复数名词+从句的结构中,如果one前面有the only/the first/the last等修饰时,从句中的谓语动词就用单数形式,否则,就用复数形式;once曾经,和过去时连用。

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