单项选择题

Don't forget to ______ "Thank you" when someone has helped you.

A． speak
B． tell
C． say
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单项选择题
I have ______ to do. Please give me ______ to read.
A． something, anything
B． nothing, something
C． nothing, everything
单项选择题
The PLA man saved three ______ lives in the accident.
A． children's
B． childs'
C． children
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