---I think students should be allowed ___ homework with friends．
---I disagree．They talk instead of ________ homework．
A． do, doing B． to do, to do
C． to do, doing D． doing, to do
Health is very _____and every student knows the _____of keeping healthy.
A． important ; importance B． important ; important
C． importance ; importance D． 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
The assistants don’t allow students __________ in the reading room．
A． speak B． speaking C． to speak
