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It is/was (of/for) sb to do 句型专项练习题
一、用 of 或 for 填空
1. It is important ______ us to protect the environment.
2. It is silly ______ him to argue with his parents.
3. It is kind ______ the old man to give food to the homeless.
4. It is necessary ______ every student to follow the school rules.
5. It was brave ______ the soldier to save the little girl.
6. It is easy ______ her to solve the math problem.
7. It is rude ______ you to speak loudly in public.
8. It is useful ______ us to learn a second language.
9. It was clever ______ her to find out the truth.
10. It is dangerous ______ children to swim in the river alone.
11. It is selfish ______ him not to share his toys with others.
12. It is possible ______ us to finish the task on time.
13. It was polite ______ the boy to give his seat to the old woman.
14. It is hard ______ them to climb such a high mountain.
15. It is generous ______ her to donate money to the poor.
二、单项选择
1. It's very kind ______ you to help me carry the heavy box.
A. of B. for C. to D. with
2. It's necessary ______ us to take enough exercise every day.
A. of B. for C. at D. on
3. It was foolish ______ the boy to tell lies to his teacher.
A. for B. of C. to D. about
4. It's important ______ children to get enough sleep.
A. of B. for C. with D. by
5. It's brave ______ the young man to jump into the river to save the dog.
A. for B. of C. to D. from
6. It's impossible ______ me to finish the work in an hour.
A. of B. for C. on D. to
7. It's polite ______ you to say "thank you" when you get help.
A. for B. of C. with D. at
18. It's easy ______ her to play the piano well.
A. of B. for C. to D. by
9. It was careless ______ Linda to lose her schoolbag again.
A. for B. of C. to D. with
10. It's useful ______ us to keep a diary in English.
A. of B. for C. on D. at
11. It's clever ______ you to work out the difficult problem.
A. for B. of C. to D. about
12. It's dangerous ______ us to go out alone at night.
A. of B. for C. with D. to
13. It's selfish ______ him not to help others in need.
A. for B. of C. to D. on
14. It's necessary ______ me to buy a new dictionary.
A. of B. for C. at D. with
15. It was kind ______ the stranger to show me the way to the station.
A. for B. of C. to D. from
参考答案
一、用of或for 填空
1. for 2. of 3. of 4. for 5. of 6. for 7. of 8. for 9. of 10. for 11. of 12. for 13. of 14. for 15. of
二、单项选择
1.A 2.B 3.B 4.B 5.B 6.B 7.B 8.B 9.B 10.B 11.B 12.B 13.B 14.B 15.B
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