—You will fail in the exams ________ you work hard.—I know, Dad. I'll try my best.A. if B. unless C. as long as
It is important ______ students ______ carefully in class .
I decided ______ a house______ a beautiful garden .
Mrs. King can speak Chinese very well, but she can only write______ Chinese words.
There ________ two football matches this evening .
Be quiet, please. I can’t _______ the guide.