问题补充:
SARS is an illness that can result in death unless left in time.
A. to treat
B. treating
C. treated
D. treat
答案:
A. to treat
B. treating
(答案→)C. treated
D. treat
解析: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。
时间:2018-09-16 18:58:49
SARS is an illness that can result in death unless left in time.
A. to treat
B. treating
C. treated
D. treat
A. to treat
B. treating
(答案→)C. treated
D. treat
解析: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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