完形填空。      In Mr. Allen"s high school class, all the students have to "get married".    1   , the wedding ceremonies (婚礼)
sometimes become so    2   that the loud laughter drowns out the    3   of the"minister (牧师)".    4   the two
students getting married often begin to    5   .
     The teacher, Mr. Allen, believes that marriage is a difficult and serious   6  . He wants young people to
understand that there are many changes that must take place    7   marriage. He believes that the need for these
changes    8   be understood before people marry. 
      Mr. Allen doesn"t only introduce his students to    9   problems in marriage such as illness or being out of
work. He also exposes    10   to the difficult and particular problems they will    11   every day. He even
familiarizes his students    12   the problems of divorce (离婚).
     It has been    13   for some of the students to see the problems that a married    14   often faces.   15  they
took the course (课程), they had not worried    16   about the problems of marriage. However, both   17   and
parents feel that Mr. Allen"s course is valuable and have   18   it publicly. Their statements and letters   19   the
class have asked the school to    20   the course again.

(     )1. A. Therefore   (     )2. A. great       (     )3. A. noise        (     )4. A. Even         (     )5. A. cry         (     )6. A. business     (     )7. A. before       (     )8. A. would       (     )9. A. funny       (     )10. A. them       (     )11. A. set         (     )12. A. to         (     )13. A. comfortable  (     )14. A. husband     (     )15. A. If         (     )16. A. much       (     )17. A. teachers   (     )18. A. pleased     (     )19. A. refusing   (     )20. A. choose

B. However     B. excited     B. sound       B. Then         B. laugh       B. time         B. without     B. should       B. major       B. these       B. take         B. of          B. necessary   B. couple       B. After       B. so           B. scientists   B. studied     B. supporting   B. supply

C. Firstly  C. noisy   C. murmur   C. Still   C. pretend C. work     C. after   C. might   C. small   C. it       C. face     C. about   C. curious  C. situation C. Until   C. too      C. students  C. favored C. reducing  C. offer

D. Immediately      D. cheerful         D. voice            D. Till             D. think            D. problem          D. from             D. could            D. important        D. all              D. see              D. with             D uneasy          D. life             D. Because          D. more             D. researchers      D. entered          D. forming          D. affect