It’s silly you your car at such a low price．
A．for; to sellB．of; to sell
C．for; sellD．of; sell
Do you think _________ should be allowed to drive?
A．sixteen-year-oldB．seventeen-year-olds
C．fifteen-year-oldD．eighteen-years-olds
Swimming is good _____ our health, but at the same time we mustn’t forget the danger．
A．forB．atC．onD．with
－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
