单项选择题
A."O" levels and "A" levels. B."O" levels and "H" levels. C."A" levels.
A. Because they could move into new flats with more rooms than their old ones. B. Because they liked to move into new flats. C. Because they could move into new flats not far from their old homes.
A.Because he can go swimming． B.Because spring is not so hot． C.Because he enjoys seeing the green．