单项选择题

It is good manners ____ help to others when they are in need.

A．to obtain
B．obtaining
C．to offer
D．offering
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单项选择题
Ted made up has mind soon and accepted the invitation ____ .
A．without hesitation
B．without doubt
C．without understanding
D．without exception
单项选择题
____ really worries George is that his parents expect too much of him.
A．What
B．This
C．Whichever
D．It
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