Nowadays teachers tend to be more dependent on ________ is thought to be a great teaching aid—the computer.

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

   Nowadays teachers tend to be more dependent on ________ is thought to be a great teaching aid—the computer.

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

Nowadays teachers tend to be more dependent on ____ is thought to be a great teaching aid—the computer.

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

       Nowadays teachers tend to be more dependent on ________ is thought to be a great teaching aid—the computer.

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

 Nowadays teachers tend to be more dependent on ________ is thought to be a great teaching aid—the computer.

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