单项选择题

It's high time we ______ something to stop road accidents.

A．did
B．are doing
C．will do
D．do
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单项选择题
The title of this passage can be______.
A. Women’s Hearts
B. Why Women Live Longer Than Men
C. People’s Hearts Pumping Power
D. How Can Women Live Longer Than Men
单项选择题
The passage may probably tell the readers ______.
A. how to get healthy
B. what to do to lose weight
C. how people keep fit by walking regularly
D. how long people should walk every day
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