—How do you like your new school, Kate?—It’s great. It is very clean and beautiful, ________ it is a little bit small.
Three fourths of the people in the country _____ farmers. But three fourths of the land ____ polluted.
--- Must I stay here with you?--- No, you ________. You may go home, but you ________go to the net bar.
Smoking is bad for your health. You should ______________.
We will be away for two weeks because we’ll have a ____________.
---Travelling by plane is _________ than travelling by train.---Yes, but it is not so ___________ as travelling by train.