When it comes to gossip(流言蜚语), learn to keep your mouth shut ________ you'll avoid trouble.
3.The police are trying to find out the _____of the woman killed in the traffic accident.
2.________you opinion, I think you are great.
1.______you were late for school, for you got up late.
9.―Your job ____ open for your return. ―Thanks.
8.Customers are asked to make sure that they ____ the right change before leaving the shop.