英语四级语法专项训练：情态动词1

　　 1)You____ all those clothes!We have a washing machine to do that sort of thing
　　 A)needn't have washed
　　 B)shouldn't have washed
　　 C)must not have washed
　　 D)can not have washed

　　 2)John's score on the test is the highest in the class;he____ last night.
　　 A)should study
　　 B)should have studied
　　 C)must have studied
　　 D)must have to study

　　 3)The room is in a terrible mess;it ____cleaned. (CET-4,1996,6)
　　 A)can't have been
　　 B)shouldn't have been
　　 C)mustn't have been
　　 D)wouldn't have been

　　 4)Nobody knows how people first came to these islands. They ____ from South America on rafts.
　　 A)must have sailed
　　 B)can sail
　　 C)might have sailed
　　 D)should have sailed

　　 5)Mary was not in her bedroom yesterday afternoon. She ____ in her classroom.
　　 A)should have been
　　 B)must have been
　　 C)must be
　　 D)should be

　　 答案：ACACB

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