19、I think I can help you repair your computer tomorrow. ________, you’ll have to will till this weekend.

  A. If so      B. If any       C. If not      D. If possible

18、 _______ such heavy loss twice, the businessman had a hard time and didn’t have the courage to continue.

A. Having suffered        B. Suffering       C. To suffer        D. Suffered

17、My daughter is not sure what to_______ at the university; she can’t make up her mind about his future.

A. take up              B. make up         C. pick up             D. build up

16、_____ I fully understand your point of view, I do also have some sympathy with Michael's.

  A. Because     B. While      C. As       D. If

15、---- Would you have gone shopping had it been possible?

   ---Yes, but I ___ busy doing my homework.       

  A. was   B. am   C. had been   D. were

14、In ____late 19^th century, Europe changed ______great deal and was playing important roles in ______international trade.

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

13、Tom is so stubborn and careful a man, that it took five hours to_______ him of my good idea and to give up his.

  A. ask       B. convince       C. remind      D. inform

12、Though his speech was not quite to the point, it__________ very well as a whole.

A. became of    B. came across   C. gave out    D. turned up

11、It was half past eleven ________she returned home last night, _______, of course, made her mother angry.

A. when; that    B. that; which    C. when; which    D. which; when