单项选择题

You can come and see me () you run into difficulty.

A.some time
B.in time
C.whether
D.whenever

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单项选择题

We don't have much time (); I will end my lecture in a minute.

A.remained
B.kept
C.left
D.found

单项选择题

How are you feeling now Should I send () the doctor

A.for
B.to
C.with
D.off

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