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________the Internet is bridging the distance between people, it may also be breaking some home or will cause other family problems.

A．When B．While

C．If D．As

___ the Internet is bridging the distance between people, it may also be breaking some home or will cause family problems.

A. When               B. While               C. If                     D. As

______ the Internet is bridging the distance between people, it may also be breaking some home or will cause other family problems.

A．When          B．While          C．If            D．As

　　 the Internet is bridging the distance between people,it may also be breaking some home or will cause other family problems.

A、When　 B、While　　 C、If　　 D、As