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(   ) 1. When I got to school,I realized that I      my dictionary at home.

   A. has left   B. left

   C.  would left   D. had left

(   ) 5. The girl sitting next to me on the plane was very nervous  for she       before.

   A. didn't fly   B.  hasn't flown

   C.  hadn't flown   D.  wasn't flying

(   ) 4. She said that she        to Sanya three times.

   A. has gone   B.  has been

   C.  had been   D.  had gone

(   ) 3. They        supper before I came in.

   A. have cooked   B.  cooked

   C.  are cooking   D.  had cooked

(   ) 2.  When I arrived at the cinema, the movie       for thirty minutes.

   A. had begun   B.  had been on

   C.  had started   D.  has been on

(   ) 1. ―Why was he late for the international meeting?

—By the time he got to the airport, the plane        already        .

   A. has;taking off   B. has;taken off   C. would;take off   D. had;taken off

3.She had lived in New York for ten years by the end of last month.(改為一般疑問句)

      she      in New York for ten years by the end of last month?

2.He had been to England before he went to work. (改為否定句)

He              to England before he went to work.

 1.The Chinese class started. I got to school.(用by the time合為一句) 

The Chinese class               by the time I got to school.

5.我問瑪麗是否已經(jīng)參觀過北京的一些名勝。

I asked Mary         she                    some places of interest in Beijing.