It is a b---- responsibilily（责任） to be on traffic duty.

It is a b---- responsibilily（责任） to be on traffic duty. It's your turn to be on duty（） A、so it is B、so am I it is your turn to be on duty.（ ） whose turn is it-------（be） on duty today _____lily______?A.Is,on duty B.Dose,on duty 连词成句 turn it to is duty on my today be it is your turn to be on duty ,为什么用so it is,而不用so i am It’s your turn to be on duty._______ it is imperative on us （ ） A.to be tolerant of him B.that we He has ___the classroom when he is on duty.A clean B to clea it must be a place____the traffic is very convenient whose turn is it ( ) on duty today