484.The food in our country is quite different from one in Britain.

483.You are only one of the workers I can trust.

482.Bamboo is very useful. We can make it of many kinds of things .

481.All happened in our school was quite unexpected.

480. I’m afraid I will have a little time to come and see you.

479.By the time you will come back , we shall have had our final examination.

478.Since she understood you, why not to try to explain it to him?

477.I had hardly set out than it began to rain.

476.I have handed in all the exercise books except John.

475.The puzzling mother couldn’t understand why her daughter got so excited.