14. Looking through the window, she found the boss     in his routine work.

A. lose      B. lost

C. to lose    D. having lost

13. The traveller  phoned  the  police  in  panic，   that she'd lost her baby.

A. cried        B. to cry

C. having cried   D. crying

12.   with conducting an interview by QQ online, a face-to-face interview in person can provide people with more reliable details.

A. Comparing       B. Compared

C. To compare     D. Compare

19.If you go to the Palace Museum,you'll find many Chinese treasure    there.

A. to exhibit      B. exhibited

C. exhibiting     D. having exhibit

11.   Difficult    in practice， this new technique hasn't been applied.

A. operated     B.   to be operated

C. operating      D.   to operate

10. Experts insist that packets of cigarettes come with a health warning    to them.

A. be attached  B. attach

C. attached    D. attaching

9. More high-speed railways have been built in China,    it much easier for people to travel.

A. to make     B. made

C. having     D. making

8. Have you considered how weak humans are ，    a volcano, hurricane or earthquake?

A.    comparing with

B.    compared with

C.    to compare with

D.    having been compared with

7. Hearing a scream, I rushed downstairs, only   the hostess lying unconscious on the floor.

A. seeing    B having seen

C. seen      D. to see

6. Mr Wang told us that he would devote all the time he could spend     his oral English before going abroad.

A. improve          B. to improve

C. improving        D. to improving