—I' m sorry, but I didn’t mean__________ out your secret.—But you know, letting out one's secret means________ one' s feelings.

My friend, David, was not used __________ by air, so he felt unwell.

______ a family of chimps wake up is our first activity of the day.

_______ Jane’s way of studying chimps, our group are all going to visit them in the forest.

What is the best way you can imagine        the overuse of water in our daily life.

They couldn’t stand        like that．

Chen Xiexia is the first Chinese athlete ______ the gold medal in the Beijing Olympic Games.

______ many times，he finally understood it．

The detective, ________ to read a newspaper, glanced at the man ________ next to a woman.

—What do you think made Tina so delighted？ —__________ the driving test at her first attempt.

---He admitted __________in the examination. ----That’s why he was not admitted _____ universities. 

          in the river for five hours, the thief looked very pale and exhausted.

A thief broke into the house at midnight, ______ the house in a mess .

_____ in thought, he sat at the edge of the bed, with his eyes _____ on the letter in his hand.

John received an invitation to dinner, and with his work ________, he gladly accepted it. 

－It’s necessary to limit the speed of electric bikes.－Yes, most riders of electric bikes in China        40-50 kilometers per hour often ignore red lights,        the risk of traffic accidents. 

The room is too small and it is not fit________.

I like getting up very early in summer. The morning air is so good ________.

I still remember  ______ to the Famen Temple and what I saw there．

The old man needs _________ .