摘要：-These farmers have been to the United States. -Really?When there? A.will they go B.did they go C.do they go D.have they gone 答案: 2.B 现在完成时与一般过去的区别:一般过去时表示过去某个时间发生的事.存在的状态或经常发生的动作.说话的侧重点在于陈述一件过去的事情.与现在没有关系,现在完成时表示与现在有关系的发生在过去的动作.它不与表示过去的时间状语(如yesterday,last week,a moment ago等)连用.
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—These farmers have been to the United States.
—Really? When _____ there ?
—Really? When _____ there ?
[ ]
A. will they go
B. did they go
C. do they go
D. have they gone
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B. did they go
C. do they go
D. have they gone
— These farmers have been to the United States.
— Really? When ______ there?
— Really? When ______ there?
[ ]
A. will they go
B. did they go
C. do they go
D. have they gone
查看习题详情和答案>>
B. did they go
C. do they go
D. have they gone
—These farmers have been to the United States.
—Really? When _______ there?
—Really? When _______ there?
[ ]
A. have they gone
B. did they go
C. will they go
D. do they go
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B. did they go
C. will they go
D. do they go
—These farmers have b
een to the United States.?
—Really?When there??
een to the United States.?—Really?When there??
[ ]
A. will they go 
B. did they go
C. do they go
D. have they gone
查看习题详情和答案>>
B. did they go
C. do they go
D. have they gone
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