I am not going swimming tomorrow afternoon.——___________. I have to clean up my bedroom.

Though Lei Feng ________ for fifty years, we are still learning from his spirit.

Teenagers like reading the books ________ are written by Guo Jingming.

Have you heard of Betty?–Of course, she is a lively child and_______with every one of us.

He would have come here on time, but he _____ in the heavy traffic on the way.