单项选择题


A．tumble down
B．twist around
C．topple down
D．stumble over
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单项选择题
A．thoughB．asC．thanD．and
A．though
B．as
C．than
D．and
单项选择题
According to the report, how many overseas are now studying in Britain
A．100,000
B．300,000
C．600,000
D．900,000
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