A sheep_______on this kind of special grass usually grows much faster than_______on ordinary (普通的).

A sheep _____ on this kind of special grass usually grows much faster than ____on ordinary.

1. A.
   feeding; one
2. B.
   feeds; the one
3. C.
   fed; that
4. D.
   feeding; it

 A sheep _____ on this kind of special grass usually grows much faster than _____ on ordinary.

A. feeding; one    B. feeds; the one         C. fed; that           D. feeding; it

 A sheep        on this kind of special grass usually grows much faster than        on ordinary.

   A. feeding; one   B. feeds; the one     C. fed; that        D. feeding; it