the Internet is bridging the distance between people it may also break some families or

问题补充：

the Internet is bridging the distance between people, it may also break some families or cause other family problems.

A. As

B. If

C. While

D. Since

答案：

A. As

B. If

(答案→)C. While

D. Since

解析：考查连词，as因为，当……时候 if如果 while虽然，然而， since自从，因为

句意为，虽然英特网架起了人与人之间的桥梁，但是它也可能破坏一些家庭或者导致家庭问题。