It has been proved______eating vegetables in childhood helps to protect you against serious illnesses in later life

Could you tell me___________—Sorry， I don’t know. I will call you when he comes back.

Whydon’tyougoouttoplay,Rose—I’mafraidIcan’t.Ihavemuchhomework________.

Leave your key with your neighbor ________ you lock yourself out one day.(2012·辽宁)

It is too noisy. I can hearwhat Mr. Wang is saying.