60. I like __________books better than __________films.
A. Ø / Ø B. the / theC. Ø / the D. the / Ø
62. A lot of cows ________ on a productive farm.
A. can raise B. can be raising C. can be raised D. cannot raise
63. Nuclear waste _______ as a liquid in stainless-steel containers which are encased in concrete.
A. must store B. must be storing C. must be stored D. must have stored
64. The goalie tried to catch _______ ball, but he failed.
A. a B an C. the D. Ø