单项选择题

The old professor had such a bad memory that he looked for the watch while he is ______ .

A. having it on
B. having on it
C. wearing it
D. putting it on
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单项选择题
Up to now not only the students but also their teacher ______ the football club.
A. joined
B. has joined
C. have joined
D. joins
单项选择题
The pair of bracelets were ______ from my grandmother.
A. handed in
B. handed out
C. handed down
D. handed over
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