单项选择题

I don"t know ______ Lily is.

A．when
B．which
C．where
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单项选择题
Which of the following is true
A．Ann works in this hospital.
B．Ann"s mother is sick.
C．Ann is sick.
单项选择题
It s cloudy. It seems that it ______ this afternoon.
A．will rain
B．rains
C．is raining
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