单项选择题

Both companies are ______ the same business.

A． in
B． with
C． from
D． through
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单项选择题
The board meetings usually ______ on time.
A． have started
B． start
C． are starting
D． have been starting
单项选择题
My supervisor had me ______ the morning taking inventory.
A． spend
B． to spend
C． spent
D． spending
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