单项选择题

Helping others is a habit, ______ you can learn even at an early age.

A．it
B．that
C．what
D．one
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单项选择题
If our parents do everything for us children, we won t learn to depend on
A．themselves
B．them
C．us
D．ourselves
单项选择题
When you introduce me to Mr. Johnson, could you please say ______ for me
A．everything
B．anything
C．something
D．nothing
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