I haven’t seen Tom for a long time. Is he ill—_____. His teacher told me he was in hospital.

______ on a clear day, far from the city crowds, the mountains gave him a sense of peace.[ ]

（题文）If we don’t ________ the problem, it will certainly grow.

on’tknow ____­­­­­­­­­­­_ to take up Miss Rose’scourse because of her wedding leave, I have to ask her students about it .

My father earns around 500 yuan per month, which can hardly _____ the basic needs of our family. [ ]