—Now the air in our city is even________than before.
—So we must do something to stop it.
A. noisier B. better C. worse
________ birds come to this warm place every autumn.
A. Thousands B. Thousands of C. Two thousand
—________ do you read English papers?
—Every day. And I like China Daily best.
A .How often B. How long C. How soon
—Do you know these kinds of animals are in danger?
—Yes. Our country is trying to ________ them.
A. kill B. buy C. Protect
My mother planted lots of ________ in the garden.They are yellow, white, red and pink.
A. grass B. roses C. trees
You’d better ________ so late at night. It’s bad for your health.
A. not stay up
B. not to stay up
C. no staying up
