Dad, why must I stop______ computer games — For your health , my boy.

Hello, I’d like to see Doctor Smith at 3 o’clock tomorrow afternoon.—Sorry, but he ________ a patient at that time

We don’t have_______ salt at home. Could you go and get _______, please

One way to ________ species under threat of extinction—whatever the cause—is to remove them to zoos or parks and feed them there.

he past decades, sea ice _____ in the Arctic as aresult of global warming.