－I think teenagers should not be allowed to get car licenses．
－I agree．They are not _______．
A．serious enoughB．something serious
C．nothing seriousD．enough serious
---I think students should be allowed ___ homework with friends．
---I disagree．They talk instead of ________ homework．
A．do, doingB．to do, to do
C．to do, doingD．doing, to do
Health is very _____and every student knows the _____of keeping healthy.
A．important ; importanceB．important ; important
C．importance ; importanceD．importance ; important
Tom, your hair is too long．Would you please get your hair ____?
A．cut
B．to cut
C．be cut
At last, Kangkang made the baby _______ and began to laugh.
A．stop to cry
B．stop crying
C．to stop to cry
I would like ________ at home this weekend．
A．stay
B．staying
C．to stay
