Three trees can do the job of 15air-conditioners _________ almost all day.
#48595
A
run
B
are running
C
ran
D
running
推荐题目
Thanks for       me with my English.
#50376
A
help
B
helps
C
helping
D
helped
–We should do what we can _____ the endangered animals.` --Yes, it’s duty_____ them.
#50588
A
save, to protect
B
save, protect
C
to save, protect
D
to save, to protect
—Do you like watching TV? --Actually not, I prefer ______ to music rather than _____TV.
#50590
A
listening, watching
B
listen, watch
C
to listen, watch
D
listening, to watch
Students are supposed ________ hard at school.
#50182
A
studying
B
studied
C
to study
D
study
I think ______ with friends is better than_______.
#51141
A
chat; watching TV
B
chatting; watching TV
C
chatting; watch TV
D
chat; watch TV