17. Without the air to hold some of the sun’s heat, the earth at night____________, too cold for us to live.

　　 A. would be freezing cold　　　 B. will be freezing coldly

　　　 C. would be frozen cold　　　　　 D. can freeze coldly

16. I felt sad because he pretended__________me in the street.

　　 A. not to have seen　　　　　　　 B. not to see

　　 C. to have seen　　　　　　　　 　　　D. not seeing

15. I will come on condition___________my parents are invited, too.

　　 A. that　　　　　 B. what　　　　　 C. which　　　　 D. when

14. Her mother has greatly taken pride________what his son achieved in the exam.

　　 A. with　　　 B. for　　　 C. in　　　　　 D. of

13. With the _________number of cars we have had to build many new roads.

　　　 A. increased　　　　　　　　　　　 B. increasing　　

　　　 C. being creased　　　　　　　 D. increase

12. John is young, but we never knew _________young a body with___________wise a head.

　　　 A. so ; so　　 B. such ; such　　　 C. such ; so　　 D. so; such

11. It　 is useless _________argue with such a cruel person.

　　　 A. to try　　　 B. trying　　　 C. have tried　　 D. had tried

10. __________in thought, he almost ran into the car in front of him.

　　 A. Losing　　　　 B. Having lost　　 C. Lost　 D. To lost

9. Rather than__________on a crowded bus, he always prefers__________a bicycle.

　　 A. ride ; ride　　　　　　　　　 B. ridding ; ride

　　 C. ride ; to ride　　　　　　 D. to ride ; riding

8. Remember___________my best regards to him when you write.

　　 A. sending　　　 B. send　　　 C. sent　　　 D.to send