单项选择题

He doesn't say in his letter that he's going to be back or not.

A．say
B．that
C．be back
D．or not
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单项选择题
You must follow the directions exactly, and if you become confusing, you must take the time to go back again and read them over.
A．exactly
B．confusing
C．the time
D．them
单项选择题
Although I expected something different, I was still, surprised by which he said.
A．Although
B．different
C．still
D．which
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