题目内容
But for electricity, human life _____ so easy today.
| A.isn’t | B.would not be | C.will not be | D.would not have been |
B
解析
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题目内容
But for electricity, human life _____ so easy today.
| A.isn’t | B.would not be | C.will not be | D.would not have been |
B
解析