摘要： Without electronic computers, much of today’s advanced technology . A. will not have been achieved B. have not been achieved C. would not have been achieved D. had not been achieved 解析:(C)这是一人含蓄虚拟条件句.通过介词短语without,表示潜在的一种假设.而主句中的情况也早已经发生.所以是对过去情况的一种假设.因此用would not have been achieved这一形式.
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Without electronic computers, much of today’s advanced technology __________.
A. will not have been achieved B. have not been achieved
C. would not have been achieved D. had not been achieved
Without electronic computers ,much of today’s advanced technology .
A．will not have been achieved B．have not been achieved
C．would not have been achieved D．had not been achieved
查看习题详情和答案>>Without electronic computers, much of today’s advanced technology ________．
- A.will not have been achieved
- B.have not been achieved
- C.would not have been achieved
- D.had not been achieved