There are many kinds of birds in Australia,and over 140 species of snakes,many of             

     ____are extremely dangerous.?

     A.them                       B.which

     C.what                       D.those?

There are many kinds of birds in Australia, and over 140 species of snakes, many of

       are extremely dangerous.

A．them       B．which        C．what          D．those

There are many kinds of birds in Australia, and over 140 species of snakes, ______are extremely dangerous.

A. many of those        B. many of that       C. many of which    D. many of what

There are many kinds of birds in Australia, and over 140 species of snakes, ______are extremely dangerous.

1. A.
   many of those
2. B.
   many of that
3. C.
   many of which
4. D.
   many of what