—I have trouble learning math this term. —You should pay more to your teacher’s advice. A. money B. attention C. time
—I think the magic from Liu Qian was the best program last night. —Oh, it’s a pity. I _______ cards with my family and missed it.
You will never know the result ______ you try it by yourself.
All of us thought Kathy would come to the speech contest. But she didn’t ______.
The performance _______ three hours but none of us wanted to leave earlier.
The book which _______ by Mo Yan has been sold out.