单项选择题

Doctors sometimes ______old cures when modem medicine doesn’’t work.

A．fall on
B．fall down on
C．fall back on
D．fall in upon
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单项选择题
A．has been prosecuted by the Justice Ministry.B．may be prosecuted by the Justice Ministry.C．has been prosecuted by the police.D．will be prosecuted on Monday.
A．has been prosecuted by the Justice Ministry.
B．may be prosecuted by the Justice Ministry.
C．has been prosecuted by the police.
D．will be prosecuted on Monday.
单项选择题
We usually give a couple gifts at their marriage________.
A．to make the marriage legal
B．to make the couple richer
C．to express our good wishes
D．to show the importance of marriage
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