It’s so cold. You’d better __________ your coat whenyou go out.A．put up

Do you know the boy _______ under thebig tree

Can I take a _______ for Helen—-Sure, thanks. Please tell Helen to call me back when she gets home.

Not only he but also his parents_____China for two years .

o the ______ of this medical technology, some diseases can be treated at an early stage.