The lady __________ a singer when she wa

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问题选择题

The lady __________ a singer when she was 18 years old.[ ]

A. became

B. become

C. be

答案

答案：A

选择题

It was not until the supreme lending crisis (次贷危机)had caused great damage to the American

financial system ______ Americans realized the severity (严重性) of the situation. [ ]

A. which

B. that

C. what

D. when

单项选择题

将制作后的若干张剖面装入《岩屑柱状剖面图册》内，先从（）开始自上而下装，装满后再从右侧自上而下装，一本册子装完后再装另一册，直至装够为止。

A.右侧

B.左侧

C.中间

D.两侧