In the US, students can do almost anything they want in class, ____ they don’t make too much noise or disturb others who want to learn from the teacher

big snow lasted nearly half a week.What was worse, they were trapped in the mountain and badly ________ food.

59, lookedfresh and _______ as he _______ of the sunny weather to enjoy one of hisfavorite pastimes

There abook and three pens in the pencil-box .

Thepoliceman’s_________trafficdirectionsmadeallthedriversquite ___________.