The young couple had a quarrel last night and neither of them would give in to ______.

—Can you come for dinner on Saturday or Sunday?—I’m afraid _______day is possible.

I had to buy ________ these books because I didn't know which one was the best.

Some foreign media predict that all these reforms will make China a strong and powerful country,  ______ that can surprise the whole world. 

The best job is ____which uses your skill in doing something with your interest in the subject.