_____he was tired， _____he didn't stop to have a rest.
A. Though； but B. Though； /C. But； thoughD. /； /
The answers_____ our questions are different.
A. ofB. to C. atD. off
Two percent of the homework _____ about math.
A. isB. areC. be D. to be
My computer doesn't work now， there must be with it.
A.wrong something B.something wrong
C. wrong anything D. anything wrong
Both Jim and Sam love junk food， ________they try to________ only once a week.
A. but； eat it B. and； eat themC. and； eatD. but； eat
Some children watch TV three___ four ___a week.
A. and； timesB. or； times C. and； timeD. or； time
