In summer milk will quickly go bad_____ it is put into a fridge.
Children these days ______ their parents too much.They should learn how to look after themselves.
It will be hard for us to get up in the morning if we ________ to bed too late.
当别人称赞你时, 你应该说: “____”。
当你被介绍认识某人后, 你应该说: “____”。
—What ____ is Jane in?—She is in ____ Six.