题目内容
23、---You could have walked here.
---Yes. A taxi ___________ necessary.
A. is B. was C. isn’t D. wasn’t
试题答案
23、D
【解析】考查动词时态。句意：---你本能步行到这儿的。----是的。乘出租车没有必要（过去因现在已经乘了）。
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