赞题库-背景图
单项选择题

I have already put ______ necessary into my computer.

A．all the information
B．all of the informations
C．all the informations
D．all informations
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热门试题

单项选择题It is you ______ our real friend.

A．that is
B．which is
C．who is
D．who are

单项选择题I ______ English for six years before I came to Beijing University.

A．learned
B．have learned
C．have been learning
D．had learned