---Tina, I want to have a pet. How about a dog?--- I prefer a cat. It is ______ to take care of.

We hope that with the help of the new skill, Liu Xiang can run ________than before.

–How are you today, Francis?–Much _______, but my doctor says I’ll still have to rest for another few days.

There’s too much noise here. I think we need a            place to study.

30,000 dollars ______ a large amount of money, but it’s ______ than we need.