单项选择题

How many students were shot dead in 1997 in the US schools（）

A．9
B．10
C．12
D．22

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热门试题

单项选择题

Some two thousand million years ago, the mountain on the sun was raised probably because（）

A．the star moved away from the sun
B．another star happened to come near the sun
C．fhe sun and the moon raised the tides on the earth
D．a large tidal wave of a star travelled over the surface of the sun

单项选择题

The four men didn’t feed the cows because（）

A．Mr. Johns wasn’t at home
B．the cows fed themselves
C．Mr. Johns had feed the cows in the morning
D．they find it difficult to feed cows