—Whendidyoulearntowalk?（）—WhenI_____2yearsold.A．beB．wasC．amD．were_刷题宝

题干

—When did you learn to walk? （）
—When I _____ 2 years old.

A．be

B．was

C．am

D．were

上一题下一题 0.99难度选择题更新时间:2019-12-11 07:02:30

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