系表结构短语1. _ in a white uniform, he works more like a cook than a doctor.A. Dressed B. To dress C. Dressing D. Having dressed2. _ with so much trouble, we failed to complete the task on time.A. Faced B. Face C. Facing D. To face3. Can those _ at the back of the classroom hear me?- No problem.A. seat B. sit C. seated D. sat4. _ in the mountains for a week, the two thousand students were finally saved by the local police.A. Having lost B. Lost C. Being lost D. Losing5. _ with a difficult situation, Arnold decided to ask his boss for advice.A. To face B. Having faced C. Faced D. Facing6. _ to sunlight for too much time will do harm to your skin.A. Exposed B. Having exposed C. Being exposed D. After being exposed7. _ an important decision more on emotion than our reason, you will regret its sooner or later.A. Based B. Basing C. Base D. To base8. _ these two toothbrushes and you will find the purple one is softer.A. Compare B. Compared C. Comparing D. To compare答案： AACBC CBA