单项选择题

Do you think it necessary ______ an English diary every day

A．keep
B．to keep
C．keeping
D．kept
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单项选择题
You know that's right, ______.
A．is it
B．isn't it
C．do you
D．don't you
单项选择题
Those good traditions have been passed ______ the younger generation.
A．on to
B．to on
C．cross to
D．to
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