A lot of fish in the river _____ because of the water pollution.

A. has died B. have died C. have dead D. is dead

Our school invites good teachers from other schools to give us talks _______

A. from time to time B. from one to another

C. from past to now D. from day to night

Have you realized the seriousness(严重性) of the present ___________？

A. situation B. dictionary C. interest D. performance

---Why is Mike so excited? Did he win the competition?

---Yes. He had 30 minutes to finish the tough task, no more and no less.

A. especially B. probably C. exactly D. hardly

We'll _____ a very fast-paced modern life in the new era.

A. get used to B. used to C. be used as D. be used for

-- Have you got any information about your missing dog?

-- . We are still looking for it.

A. Not yet B. I hope not C. I think so D. Of course

---It has been much easier for me to go to work________ shared bikes appeared.

----But they also caused plenty of problems.

A. since B. before C. unless D. though

—_______have you known each other? —Since we were in our childhood．

A. How far B. How often

C. How long D. How soon

--I have just got an A in English.

--_____________.

A. You've done a good job B. It can't be worse

C. It's too good to be wrong D. You're always welcome

One day, a man was walking through a large city. On a street corner he saw a boy with a number of small birds for _____ in a cage(笼子).

He looked_____ at the little birds flying about the cage, beating the wires(金属丝) with their wings, and trying to get ______ .

He stood for some time looking at the birds.______ he said to the boy, "How much do you ask for your birds?"

"Fifty cents a piece, sir," said the boy. "I do not______ how much a piece," said the man, "but how much for all of them? I want to _____ them all."

The boy began to ____ , and found they came to five dollars. "Here is your _____ ," said the man. The boy took it, well pleased with his morning's______

As soon as the bargain(交易) was done, the man _____ the cage door, and let all the birds fly away.The boy, in great_______ , cried, "What did you do that for, sir? You have _______all your birds. '

"I will tell you _______I did it," said the man. "I was ______ for three years in a French prison(监狱) as a prisoner of war, and I've decided ______ to see anything in prison that I can make free. '

1.A. visit B. sale C. pleasure D. treatment

2.A. sadly B. happily C. coldly D. kindly

3.A. on B. off C. up D. out

4.A. At last B. Now and then C. Just now D. At the same time

5.A. learn B. understand C. mean D. hear

6.A. feed B. eat C. catch D. buy

7.A. read B. count C. remember D. help

8.A. money B. bird C. cage D. wire

9.A. exercise B. lesson C. trade D. show

10.A. closed B. opened C. knocked at D. broke into

11.A. danger B. hope C. surprise D. excitement

12.A. lost B. killed C. sold D. kept

13.A. how B. why C. when D. where

14.A. looked after B. hidden away C. shut up D. shown around

15.A. always B. seldom C. sometimes D. never