At times ,worrying is a normal, ________response to a difficult event or situation—a loved one being injured in an accident , for example.

A．effective              B．individual             C．inevitable             D．unfavorable

 —How is everything going on with you in Europe?

—Quite well. Not so smoothly as I hoped, __________.

A. though                B. instead                C. either                  D. too

 Mary kept weighing herself to see how much _______ she was getting.

A. heavier               B. heavy           C. the heavier           D. the heaviest

 The old lady’s hand shook frequently. She explained to her doctor          this shaking had begun half a year before, and         , only because of this, she had been forced to give up her job.

A. when; how     B. how; when     C. how; how      D. why; why

 As there is less and less coal and oil, scientists are exploring new ways of making use of ______ energy, such as sunlight, wind and water for power and fuel.

A. primary      B. alternative       C. instant          D. unique

 __     he has limited technical knowledge, the old worker has a lot of experience.

A. Since                  B. Unless                 C. As                      D. Although

 According to statistics, a man is more than twice as likely to die of skin cancer _________ a woman.

A. than        B. such       C. so            D. as

 —Why didn’t you tell him about the meeting?

—He rushed out of the room __      I could say a word.

A. before            B. until                C. when           D. after

 It is not socially             for parents to leave children unattended at that age.

A．accessible   B．adorable    C．adaptable    D．acceptable

 There is an old proverb, “Love me, love my dog.” But there is _________ wisdom in this: “Love me, love my book.”

A. some           B. much            C. more             D. most