首页 > — Have you ever visited the Water Cube?— Yes. When I served as a volunteerin Beijing, Iit twice.[ ]A

— Have you ever visited the Water Cube?— Yes. When I served as a volunteerin Beijing, Iit twice.[ ]A

题目简介

— Have you ever visited the Water Cube?— Yes. When I served as a volunteerin Beijing, Iit twice.[ ]A

题目详情

— Have you ever visited the Water Cube?
— Yes. When I served as a volunteerin Beijing, I it twice.

[ ]

A. have visited
B. visited
C. had visited
D. had been visiting

题型：单选题难度：中档来源：安徽省模拟题

答案

B

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