—You may find the key to the math problem on page 107.—Ah, it’s so simple. I wonder why I _____ of that.
Beijing is ___ capital of Chian, ___ everybody knows.
---Where shall we have a meeting tonight?---How about this hall? It’s large enough to ___ two thousand people.
Today our lives are getting ___.
When did you ___ him?
I’ll get my secretary ___ the letter.