-- What were you doing when Ton phoned you?

-- I had just finished my work and ____ to take a shower.

   A. had started       B. started          C. have started     D. was starting

 I _____ you not to move my dictionary now I can’t find it.

   A. asked           B. ask             C. was asking      D. had asked

--   Has Sam finished his homework today?

-- I have no idea. He ____ it this morning.

   A. did             B. has done        C. was doing       D. had done

--I hear Jane has gone to the Holy Island for her holiday.

-- Oh, how nice! Do you know when she _____?

   A. was leaving      B. had left         C. has left          D. left

You were out when I dropped in at your house.

-- Oh, I _____ for a friend from England at the airport.

   A. was waiting      B. had waited      C. am waiting       D. have waited

The discussion ____ alive when an interesting topic was bought in.

   A. was coming      B. had come        C. has come       D. came

 My mind wasn’t on what e was saying so I’m, afraid I _____ half of it.

   A. was missing      B. had missed      C. will            D. missed

Sales of CDs have greatly increased since the early 1990s, when people ____ to enjoy the advantages of this new technology.

   A. begin           B. began          C. have begun      D. had begun

 It is said in the book that Thomas Edison (1847-1931) _____ the world leading inventor for sixty years.

   A. would be        B. has been        C. had been        D. was

She _____ her hairstyle in her hometown before she came to Chongqing for a better job.

   A. would change    B. has changed      C. changed        D. was changing