单项选择题

The captain of the ship ______the passengers that there was no danger.

A．assured
B．ensured
C．secured
D．insured
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单项选择题
______, a man who expresses himself effectively is sure to succeed more rapidly than a man whose command of language is poor.
A．Other things being equal
B．Were other things equal
C．To be equal to other things
D．Other things to be equal
单项选择题
If I hadn''t stood under the ladder to catch you when you fell, you ______ now.
A．wouldn't be smiling
B．couldn't have smiled
C．won't smile
D．didn't smile
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