单项选择题

The differential attractions of the sun and the moon (have) a direct effect (in) the (rising) and falling (of) the tides.

A．have
B．in
C．rising
D．of
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单项选择题
Psychology Today (is) (interesting), informative, and (it is) easy (to read).
A．is
B．interesting
C．it is
D．to read
单项选择题
The girl is made ______ right after she comes from school.
A．do her homework
B．doing her homework
C．to do her homework
D．to be doing her homework
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