单项选择题

Yesterday when I was walking on the street, I ______ to see an old friend of mine.

A．managed
B．happened
C．settled
D．occurred
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单项选择题
The door opened and in _______
A．came a group of journalists
B．did a group of journalists
C．come a group of journalists
D．did come a group of journalists
单项选择题
79（）

A．every
B．that
C．a
D．no
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