6. ― We have booked a room for today and tomorrow. _______, sir.

A. I'm sure                       B. My pleasure                   C.It's      all    right                           D. I'll check

7. _______ felt funny watching myself on TV.

A. One                          B. This                             C.It                                  D. That

8. _______ he had not hurt his leg, John would have won the race.

A. If                             B. Since                              C.Though                             D. When

9. After two years' research, we now have a _______ better understanding of the disease.

A. very                             B. far                                 C.fairly                               D. quite

10. Speaking of all the songs he has written, I think this is probably his _______ one.

A. better-known                    B. well-known                     C.best-known                          D. most-known

11. If Joe' s wife won' t go to the party, _______.

A. he will either                     B. neither will he                  C.he neither     will                            D. either he will

12. At the beginning of class, the noise of desks _______could be heard outside the classroom.

A. opened and closed               B. to be opened and closed    C.being   opened    and  closed                D. to open and close

13.1 have _______ all my papers but I still can't find my notes.

A. looked through                  B. looked for                        C.looked  after                          D. looked out