When he was upset, she tried to c________ him down.

More and more people are c________ about their health and life quality（质量）

Fire d_____________ several stores in the business district.

What’s her a____________ towards the plan? Is she for or against?

You should not talk about things that don’t c___________ you.

For him, this will be an ___________ (完全地) new hobby.

There’s a big difference between saying you’ll do something and a       doing it.

I am rather c       about my mother’s health, for she is in hospital now.

One of the        (不利条件) of the job is the long hours I work.

The plane flew at an a j              of 3000 feet.