单项选择题

You should never ______ your promise to a child.

A．go back on
B．go after
C．go in for
D．go over
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单项选择题
______ the storm the ship would have reached its destination on time.
A．In case of
B．Because of
C．In spite of
D．But for
单项选择题
If a baby bird stays ______ for two or three weeks after leaving the nest, it has a fair chance of becoming an adult.
A．living
B．lively
C．alive
D．live
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