单项选择题


A．to try
B．trying
C．to be tried
D．to be trying
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单项选择题
A．looked forB．looked intoC．looked overD．looked out
A．looked for
B．looked into
C．looked over
D．looked out
单项选择题
A．noteB．noticeC．notionD．notification
A．note
B．notice
C．notion
D．notification
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