_____ to nuclear radiation, even for a short time, may do great harm to your body.

A. Exposed          

B. Being exposed           

C. Having exposed     

D. After being exposed

— Hi, Mary. Would you like to go to the concert this evening?

   — Sorry, Tom.  _______tomorrow’s lessons, I have no time to go out with you.

   A. Not preparing      B. Not having prepared   

C. Not to prepare     D. Being not prepared

_____ to too much sunlight, as is generally considered, will add to the potential of catching skin cancer.

A. Being exposed          B. Exposed                 C. Exposing               D. To expose

_____ his happy look, he must have passed the driving test.

A. To judge by      B. Being judged from     C. Judging by         D. Judge from

The _____ expression on her face suggested she was ______ when he heard the news.  A. amazing; amazed    B. amazed; amazing

          C. amazed; amazed     D. amazing; amazing

Faced with a bill for $ 10,000, ____________________.

  A. John has taken an extra job.       B. the boss has given John an extra job.

  C. an extra job has been taken.       D. an extra job has been given to John.

______ himself with necessary knowledge and skills, the young man went to the job market with much confidence.

  A. Equipped       B. Equipping        C. Having equipped     D. Being equipped

Suddenly, a tall man driving a golden carriage _____ the girl and took her away ,________ into the woods.

  A. seizing ; disappeared               B. seized ; disappearing

  C. seizing ; disappearing              D. seized ;disappeared

Lots of coal miners died on the job last year, ______ the government to shut nearly 800 small mines in Shanxi Province alone.

A. having forced                  B. to force            C. forced       D. forcing

____ to nuclear radiation, even for a short time, may produce variants of genes in human body.

  A. Exposed      B. Being exposed      C. Having exposed   D. After being exposed