单项选择题

He promised me a letter; he ought to ______ it days ago.

A. have written
B. write

C. had written
D. be writing
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单项选择题
Some would consider that an infringement of good manners whereas others would not.
A. an example
B. a violation
C. a problem
D. an indication
单项选择题
The report was unusual in that it insinuated corruption on the part of the minister.
A. denied
B. suggested
C. proposed
D. stated
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