We should keep ______ in the reading –room.

What do you think of ‘Eat-up’ Campaign (光盘行动)?–I think it’s really necessary. It is reported that the food that Chinese peopleevery year is enough to feed 200 million people for a year.

I think your advice is of great ________ to me and it’s _______.

Do you remember ____________ he came? — Yes, I do, he came by car.

Peter is ________ than you, right?—-Yes, but he is ________ runner in our class.