(   ) 14. He ______ as a lawyer in Europe.

              A. trains         B. trained             C. was trained       D. was training

 (   ) 15. –Look! This sweater is beautiful.

               --______?

              A. Why not trying it on?               B. Why not try on it?

              C. Why not try it on?                   D. Why not trying on it?

 (   ) 16. I’m glad to get your _____ to spend vacation with you.

              A. invite         B. inviter               C. invitation          D. inviting

 (   ) 17. My mother was seriously ill. The doctor said that she had to ______ at once.

              A. operate     B. be operated       C. operate on               D. be operated on

 (   ) 18. This material is used _____ wood in many ways.

              A. for            B. instead                     C. instead of         D. to

 (   ) 19. Her husband never comes back home early, _____?

              A. does he     B. doesn’t he C. does her husband      D. doesn’t her husbandliuxuepaper.com