As time ______, Mary found that it was hard to forget.
A. went by
B. went through
C. went over
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She asked me whether I ______ able to read English.
A. am
B. are
C. was
Look! There ______ some boys on the playground.
A. are
B. is
C. have
划分政府问事权及支出责任应遵循的原则有______。
A. 受益原则
B. 效率原则
C. 区域原则
D. 技术原则
E. 均等原则
There is a test tomorrow, so I have to ______ my lessons.
A. go by
B. go over
C. go across