2012大学英语四级语法情态动词真题训练一

2012大学英语四级语法情态动词真题训练一

1. In China even barren mountains_____ turned into fertile fields.
   
    A)can     B) can be    C) is able to    D) is able to be
    2. At that time we thought the story_____ not be true.
   
    A)could   B)was able   C)is able      D)must
    考试用书
    3. You_____ the work better.
   
    A)could did    B)can have done      C)could have done    D)must did
   
    4. He_____ seen the film.
   
    A)might not have    B)may not     C)maybe not     D)maybe has not
   
    5. Soldiers_____ obey orders.
   
    A)may      B)can      C)must      D)need
   
    6. I mailed the letter two weeks ago. She_____ it .
   
    A)must receive    B)may received    C)might received   D)must have received
答案： 1 b 2 a 3 c 4 a 5 c 6 d