单项选择题

When everyone was ______ , the meeting began in the meeting room.

A． sit
B． seated
C． seating
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单项选择题
The thief was caught ______ he was leaving the shop.
A． after
B． as
C． before
单项选择题
Bob likes playing ______ table tennis but his sister likes play ______ piano.
A． the; the
B． the；/
C． /; the
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