There will be _______ food for wildlife in the wetlands because of fishing.
A.fewer and fewer B. less and less
C. fewer and less D. less and fewer
The girl is very smart. The problem is _______ for her to work out.
A. easy enough B. enough easy C. easily enough D. enough easily
Sixty per cent of the cranes live in _______ parts of the world.
A. the other B. other C. others D. the others
I think important for us to help people learn more about protecting animals.
A. that B. that's C. its D. it
The worker asked the _______ not _______ down their names in this form.
A. writer; to write B. writers; writing C. writers; to write D. writer; write
The woman keeps _______ the house because she wants to keep it _______.
A. cleaning; clean B. to clean; clean
C. clean; cleaning D. cleaning; cleaning
