单项选择题

When you are travelling ______, you often need to stay in a hotel.

A．if on business or for pleasure
B．whether on business or for pleasure
C．whether business or pleasure
D．on business or pleasure
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单项选择题
They were envious of Peter because of ______ captain of the team.
A．he was made
B．his making
C．his be made
D．his being made
单项选择题
Territorial ______ was the Rome Empire's principal consideration in making policy decisions.
A．increase
B．expansion
C．extension
D．enlargement
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