The Internet and the effect        brought about did a lot of good to our daily life and work. That is to say, the Internet has made a great difference in many aspects.

A. that       B. what        C. which    D. it

 The Internet and the effect _______ brought about did a lot of good to our daily life and work.

   A. that                   B. what                        C. which                                D. It 

The Internet and the effect ________ brought about did a lot of good to our daily life and work．

1. A.
   that
2. B.
   what
3. C.
   which
4. D.
   it

The Internet and the effect       brought about did a lot of good to our daily life and work. That is to say, the Internet has made a great difference in many aspects

1. A.
   that
2. B.
   what
3. C.
   which
4. D.
   it

 The Internet and the effect _______ brought about did a lot of good to our daily life and work.

   A. that                B. what                    C. which                         D. It