Usually an adult man can grow about 1.7 meters tall, _____ a few may grow as short as 1.3 meters.

  A. while          B. or                      C. for                  D. so

 The illness of her son is so ______ that she cannot go to sleep at night.

  A. satisfying      B. worrying                C. surprising     D. puzzling

 _______ you work hard, you won’t solve this problem.

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

 My uncle _____ in Taiwan for 20 years. Now he has settled down in mainland.

  A. lived          B. had lived            C. has lived       D. was living

 No doubt she will be late. It’s ______ of her to keep all the other guests waiting.

  A. original          B. logical                 C. normal         D. typical

 The teacher was absorbed in writing something, only _____ now and then to refer to a book or another.

  A. to stop          B. stopped                C. stopping      D.  having stopped

 If you haven’t had enough sleep, your actions will give you _____ during the day.

  A. away          B. up                    C. in                   D. off

 “Ungelivable” is so new an English word coined on the Internet ______ is forbidden to appear in official media or documents at present.

  A. that             B. which                 C. it              D. as

 You’d better not leave the football club. If you do, most probably you will not be ____ back in.

  A. turned        B. received             C. admitted       D. abstracted

 In January, 2011, ____ leader of the Chinese Communist Party Hu Jintao was warmly received by Barak Obama, who was elected ____ president of the US two years ago.

  A. /; /            B. the; /               C. the; the        D. /; the