2.21。The tallest building in America’s capital city is the Washington Monument(纪念碑).It is( 21 )for George Washington, the first president of the United States. He( 22 )the American colonies (殖民地)in the War of Independence (独立)against England from 1775 to 1783. As president, he( 23 )the new United States of America through its first difficult( 24 ).
The monument is one of the most popular (25) in the world. Lights shine on it at night. It can usually be( 26 )from far away.

1.14 ()students are there in your school, Tom?

4.19Family members worked hard ()sure that they had enough food.

5.31.

4.29.A. disturbing B. teaching C. forcing D. reminding

3.13The letters () on your desk yesterday, but you didn’t read them at all.

3.31.

1.12 Mary is 60 years old,()he still plans to take part in the race.

3.34.A. so B. or C. but D. for

4.18—Would you like to go to the theatre with me tonight?
—_, but I don’t think I can afford the time.
That’s nothing B. Well done C. I’d like to D. I’m afraid not