单项选择题

I doubt ______.

A. whether he can come

B. if he can come or not
C. while he will be here

D. what will he do
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单项选择题
The speed of communications today, as opposed to ______, has greatly altered the manner in which business is conducted.
A. one of yesterday

B. those of yesterday
C. that of yesterday

D. the ones of yesterday
单项选择题
She ______ clean out the spare room last week, but she was too much occupied at that time.
A. intended to


B. was intended to
C. had intended to

D. has intended to
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