---Don’t put the waste on the ground.                ---Oh, I’m very sorry. I ________ the dustbin there. 

 By the time she ________ home, her parents will have prepared some delicious food for her. 

I have to see the doctor because I         a lot lately.

The number of people, who have access to their own cars,     sharply in the past decade. 

When we reached the stadium in a rush,  the newly-elected major ____ his speech and the performance _______.

The 16th Asian Games         in Guangzhou from November 12 to November 27,2010．

Since the opening and reform policy, China    a boom in its economy.

Could I do some explanations? I    to call on you last night, but somebody came to see me just when I was to about leave.

Ladies and gentlemen, please fasten your seat belts. The plane__________.

Now that she is out of a job, Lucy ______ going back to school, but she hasn’t decided yet.

I want to buy that kind of cloth because I ______ the cloth ______ well．

According to a report, cigarette smoking____ in all indoor public places in China already.

—You may find the key to the math problem on page 107.—Ah, it’s so simple. I wonder why I _____ of that.

The black box is a necessary device on an airplane, which records its speed, direction and whether everything on the airplane______ normally. 

—I haven’t seen Tom for years. Any news about him?—He          in a toy factory for two years. Now he’s working on a farm.

—Time       . It’s likely that we will miss the bus.—Don’t worry. There are still 10 minutes left.

Up to now, the program ______ thousands of children who would otherwise have died.

It took me a long time before I was able to fully appreciate what they ______ for me.

---I’m sorry, but I don’t quite follow you. Did you say you wanted to return on September 20?---Sorry, I ______ myself clear. We want to return on October 20.

I       the office yesterday afternoon when a stranger came in with a boy．