– I prefer a cat. It is          to take care of.
A. better                       B. more difficult                 C. easier

I hope there will be ____ cars and ____ pollution in the future, thus people will live longer.

This place is not big enough for Lucy’s birthday party. We should find a       one.

People complain that the price of the apartment is getting            .

There will _______ free time in the future.

This lesson is         that one.

---I’m getting fatter and fatter. What should I do, doctor?
---You should eat ______ food and take ______exercise.

–Why isn’t your brother good at math?
-- Because he thinks math is __________ than any other subject.

I can hardly hear you because it’s too noisy here. Please speak _______ .                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            

As students, we must study hard, because ___________ we study, ________ grades we’ll get.