4. Can you tell me what shall I do next?                                 Can you tell me      ？

3. He regretted that he had not taken that job.                           He regretted        that job.

2. You doesn't look well and I think you should go to see a doctor.               You doesn't look well. You had better      .

1. Please remember that you should turn off the lights when you leave the room.

  Please remember        when you leave the room.

5. She still remembers        (take) to Shanghai when she was very young.

1.        (give) more attention,the trees could have grown better.

4. He was warned not        (eat) oily food after the operation.

3. What about the two of us        (go) out for a walk in the street?

2. The boy        (stand) there is my best friend.

  Mona Lisa,the mysterious woman in Leonardo da Vinci's 16       th century masterpiece,had just given birth to her second son when she sat for the paint?ing,a French art expert said on Tuesday. The discovery was made by a team of Canadian scientists who used special infrared (紅夕卜線的) and threedimen?sional (三維的) technology to study the paint layers on the work,which now sits in the Louvre Museum in Paris.

  Bruno Mottin of the French Museums' Centre for Research and Restora?tion said that on very close examination of the painting it became clear that Mona Lisa's dress was covered in a thin transparent gauze veil (透明面紗) .

  "This type of gauze dress was typical of the kind worn in early 16th cen?tury in Italy by women who were pregnant or who had just given birth. This is something that had never been seen up to now because the painting was always judged to be dark and difficult to examine," he told a news conference.

  "We can now say that this painting by Leonardo da Vinci was painted in memory of the birth of the second son of Mona Lisa,which helps us to date it more precisely to around 1503. " The young woman with the ambiguous half smile has been identified as Lisa Gherardini,wife of Florentine merchant Francesco del Giocondo. She had five children.

  "People always wrote that Mona Lisa had allowed her hair to hang freely over her shoulders. This greatly surprised historians because letting your hair hang freely during the Renaissance was typical of young girls and women of poor virtue (美德) ”，he said.

  The team had hoped to discover more details about Leonardo's painting tech?niques,which the artist used to create a hazy (朦朧的) effect. But scientist John Taylor said the team had been disappointed by the lack of brush stroke detail on the painting.

5. According to the passage,Mona Lisa was .

   A. a woman of poor virtue

   B. Leonardo's second wife

   C. a woman who was pregnant

   D. the wife of Florentine merchant

6. We can infer from the passage that .

   A. the research has been carried out in France

   B. Mona Lisa was painted in 1503

   C. in Leonardo's time women could only wear short hair

   D. the most difficult part is to identify the paint layers

7. What is probably the best title for the passage?

   A. Mona Lisa,the mysterious woman

   B. Mona Lisa was a new mother

   C. Great discovery in painting

   D. Leonardo's painting technique

8. The information reported in the passage was first got from .

   A. a newspaper

   B. the Internet

   C. a news conference

   D. the museum