15. With nine months _______,we feel sad that our school life will be ending for we’ll have to say good-bye.

　 A. going　　　　　　　 B. gone　　　　　　 C. goes　　　　　　 D. to go

14．Most museums are just for looking. But today some of them have things for you to touch. The signs say, "________!"

　A. Be touching　　　 B. To touch　　　 C. Do touch　　　 D. No touch

13．I spent the whole day repairing the motorbike. The work was ________easy.

　A. nothing but　　　 B. anything but　 C. something　　　 D. all except