After so many hardships, the scientist             his motherland at last.

1. A.
   set on his foot
2. B.
   set foot on
3. C.
   set feet on
4. D.
   set his feet on

After so many hardships, the scientist             his motherland at last.

A. set on his foot      B. set foot on          C. set feet on          D. set his feet on

She said she would never _______ in his house again.

A. enter

B.put her foot

C.set foot

D.get a foot

All the other wild animals were finally set f ______ from their cages.