单项选择题

It's high time we ______ something to stop road accidents.

A. did

B. are doing
C. will do

D. do
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Mr. Drake is too short ______ some of the cupboard that are over the kitchen. A) reaching C) reached B) to reach D) to be reached
单项选择题
I ______ English ever since I came here in the United States three years ago.
A. am learning

B. was learning
C. have been learning

D. have learned
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