It was not until the entrance exams were in sight that that I had so many books to cover and so many exercises to finish.

It’s said that scientists have ________ a way to deal with the serious disease

My mother is____soup. She often _____soup for us.

Look at that girl! Is it Susan?—No, it _______ be her. She has gone back to her hometown.

Are you going to Beijing _____ plane? —No. I’m going there _____ a train. It takes only four hours.[ ]