因為題中有時間狀語提示詞
the last few decades,說明是對過去的虛擬,所以得用could would 加完成時,而A是對現(xiàn)在的虛擬
Without computers ,we ____the tremendous medical advancement in the last few decades
Without computers ,we ____the tremendous medical advancement in the last few decades
Awould not makeBcouldn't have made 為什么不能選擇A
Awould not makeBcouldn't have made 為什么不能選擇A
英語人氣:319 ℃時間:2020-05-15 20:33:10
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