Trees make our city more beautiful and ________ noisy, do you think so?

The number of giant panda is        because people always hunt them.

We should eat ________ fruit and vegetables, but ________ meat. It is good for our health.

You’ll have an exam soon. I think you should spend ______ time on your homework.

There is _____pollution and ____fishes in the river now than 20 years ago.