赞题库-背景图
单项选择题

As we know, ______ most dangerous enemies are those who pretend to be friends.

A．不填;不填
B．the; the
C．the; 不填
D．不填;the
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热门试题

单项选择题Do you often talk to each ______ in English

A．another
B．other
C．the other
D．others

单项选择题May I have ______ look at ______ dictionary you bought at the bookstore

A．不填;the
B．a;the
C．a; 不填
D．the;a