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英语单选题问题1.Mr.Smith has just phoned to say that he__back till

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英语单选题问题
1.Mr.Smith has just phoned to say that he__back till Sunday the 14th.
A.don't come
B.isn't coming
C.hasn't come
D.not to come
2.It is necessary that an efficient worker____his work on time.
A,accomplishes
B.can accomplish
C.accomplish
D.has accomplished
C,说明原因!语法讲解哈!
英语单选题问题1.Mr.Smith has just phoned to say that he__back till
B 进行时表将来
C It is necessary (important,essential,imperative,etc)that...句型要求从句中用虚拟语气,形式为(should) + do,should可以被省略.