单项选择题

Though eight years have passed. I still remember（）to Mr. Ma during my visit there.

A．introducing
B．being introduced
C．to be introduced
D．introduced

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热门试题

单项选择题

In the author’s view, some languages fall behind western languages in the aspect of（）

A．their sound pattern
B．their grammatical structures
C．their vocabularies
D．their speakers

单项选择题

Which of the following is very helpful in tracing the transnational hi-tech crime（）

A．The use of e-mail of the criminal.
B．The intended target of the criminal.
C．The data record that is kept.
D．The illegal use of computer in distributing pornography: