单选题
One suggestion was to______ gasoline taxes.
A、
(A) raise
B、
(B) have raised
C、
(C) be raising
D、
(D) raising
【正确答案】
A
【答案解析】
Raise is the correct infinitive. Choice (B) suggests some action that began in the past. Choices (C) and (D) suggest some progression.
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