摘要： SARS is an illness that can result in death unless left in time. A. to treat B. treating C. treated D. treat 选C.本句中的treat 充当主语补足语.且与主语SARS之间为被动关系.故应选择过去分词.
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SARS is an illness that can result in death unless left________in time.
A. to treat B. treating C. treated D. treat
查看习题详情和答案>>SARS is an illness that can result in death unless left in time.
A. to treat B. treating
C. treated D. treat
查看习题详情和答案>>SARS is an illness that can result in death unless left ______in time.
A. to treat B. treating
C. treated D. treat
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