Why don’t you review what you have learned early _____ you don’t have to hurry before the exam?A. even though B.ever since C. so that
If you don’t work _______ enough, I don’t think your dream will come _______.
--- _______ will the fog and haze(雾霾) last? ---I have no idea. There is no sign of an end.
Many old people _________ his age die _________ cancer.
Look, the old man who is playingguitar is university teacher.
_____, I practice speaking English in the park. The air there is very fresh.