Peter is so kind. He often helps the old people to go _____ the busy street. [ ]
Before selecting the curtain for your newly-decorated house,it’s important to know what colors look great _______ the wall paper.
The book isfor us to read.
Do you think a radio is useful in learning English? —Sure. A radio can _____ listening English songs and reports.
Have you cleaned out the refrigerator _______? —Yes, I have done it ________. But I haven’t taken out the rubbish ________.