15. I ______ sooner but I didn’t know that they were waiting for me.

A. had come　　 B. was coming　　　 C. would come　　 D. would have come

14.---I need to advertise for a roommate for next term.

---________? Mary is interested.

A. Why bother　　　　 B. Why not　　　　　 C. So what　　　　 D. What for

13. Modern science has given clear evidence ______ smoking can lead to many diseases.

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

12.______ into English, the sentence was found to have an entirely different word order.

A. Translating　　　　　　　　　　　　 B. Translated 　　

C. To translate　　　　　　　　　　　　 D. Having translated

11. He was a good student and scored _________ average in most subjects.

A. below　　　　　　　 B. of　　　　　　　　 C. on　　　　　 D. above

10. The days are gone ________ physical strength was all you needed to make a living.

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