单项选择题

--What are these
--______ .

A．These are books
B．It's a book
C．They are pens
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单项选择题
--Can you speak English--Yes, but only ______ .
A．little
B．a little
C．a few
单项选择题
Hearing the news, the girl couldn't help ______ .
A．crying
B．cry
C．cried
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