9. I'm sorry to keep you                 (wait)so long . 

10. He wasn't a                  (successful) as a teacher. 

三、单项选择：(15)

(      )1. “Why are you so happy today?”  “Because I was chosen ______ of the charity show.”
      A. be the host        B. to be the host            C. being the host           D. was the host

(      )2. I was late for class yesterday _______ there was something wrong with my bike.
      A. so that                     B. because of                C. so                            D. because

(      )3. The window seems _______. Who ______ them?
      A. be broken; broken                                 B. to be broken; broke
      C. have broken down; break                       D. broken; broken

(      )4. You _______ to the meeting, why didn’t you go?
      A. be invited                 B. will be invited     C. were invited              D. are invited

(      )5. I thought I _______ remember all the words at the same time.
      A. will be able to           B. am able to          C. would be able to        D. won’t be able toliuxuepaper.com