单项选择题

______their service, many taxi drivers in Shanghai are going to learn everyday English.

A. Improving

B. Having improved
C. Improved

D. To improve
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单项选择题
In front of the classroom______.
A. is the table for the teacher
B. the table is there for the teacher
C. it is a table for the teacher
D. has a table for the teacher
单项选择题
My new glasses cost me______the last pair I bought.
A. three times more than that
B. three times as much as
C. as much three times as
D. as three times as much
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