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
I don't like the color of this T-shirt, ______, it's too tight for me.
A．beside
B．besides
C．except
D．except for
单项选择题
Air-conditioning can protect us from the extreme hot.
A．空调在酷热天保护我们。
B．空调可使我们免受酷热之苦。
C．空调使我们遭受酷热之苦。
D．空调保护使我们遭受酷热之苦。
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