4 . As an old saying goes, “He who has never been to________ Great Wall is not a true man.”

A．a

B．an

C．the

D．/

5 . —America had another 160,000 new COVID-19 cases yesterday.
—But ________ news is not ________shock to many Americans, they’re used to it.

A．the; a

B．the; the

C．a; a

D．a; the

6 . 单句改错
1. My son, who is a 18-year-old young man, now is a university student.
2. We may be one family and live under a same roof.
3. The production now is four times that it was ten years ago.
4. The experiment was much more easier than we had expected.
5. He had an astonishing look on his face when he heard the news.
6. It becomes the colder and colder when winter comes.
7. The old man caught the boy by his arm.
8. These documents are not accessible by the public.
9. He studied hard every day, aimed at passing the exam.
10. About 80 percent of web traffic are in English.

10 . The enemy took ________ control of the city. In other words, all the city was under ________ control of the enemy.

A．the; the

B．the; /

C．/ ; the

D．a; the