20、Madame Curie is a determined woman; she _____ one hardship after another but never gave up.

   A. broke through    B. got through        C. went through       D. looked through  

19、 Susan managed to climb out of the damaged car, _____ -- not seriously hurt.

   A. regularly        B. apparently        C. doubtfully          D. frequently  

18、-- Will you go to the party tomorrow evening?

-- No, I am going to a lecture, or at least, I am planning _____.

   A. that             B. to                C. so               D. it          

17、--What did they do with your car?

-- They repaired its brake and also recommended that I _____ a new tyre.

   A. buy             B. bought            C. would buy        D. must buy    

16、-- Who do you think will be elected _____ president, Barack Obama or Hillary Cliton?

-- Sorry. You know I have only _____ limited understanding of American politics.

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

15、--Where have you been?

-- I was caught in the traffic, _____ I could have been here sooner.

   A. however         B. although           C. anyway          D. otherwise    

14、 They are letting us use their computer, and _____ we are giving them the results of our research.

A. in decline        B. in return           C. by chance       D. by turns    

13、The problem has     ___ simply because you didn’t follow the instructions in the handbook.

A. raised           B. arisen              C. annoyed         D. arranged     

12、Perhaps _____ separates the successful people from others is _____ they live on purpose.

   A. what; that        B. that; that           C. that; what        D. what; what   

11、_____ in the detective story, he didn’t notice his father speaking to him.

   A. Having absorbed                        B. Absorbing

   C. Being absorbed                          D. Absorbed