Some scientists think that it may take ______ years to make robots look like people, and do the same things as us.
A、hundreds of
B、two hundreds of
C、two hundreds

Some scientists think that it may take ______ years to make robots look like people, and do the same things as us.

A、hundreds of

B、two hundreds of

C、two hundreds

Some scientists think that it may take ______ years to make robots look like people, and do the same things as us

1. A.
   hundreds of
2. B.
   two hundreds of
3. C.
   two hundreds

 Some scientists think that it may take ____________ years to make robots look like people, and do the same things as us.

      A. hundred of   B. two hundreds of  C. hundreds of  D. two hundred of