Either Joe or Rose was the last to leave the lab yesterday. But I’m not sure . A
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Either Joe or Rose was the last to leave the lab yesterday. ButI’m not sure ________.
A.it
B.whom
C.who
D.that
试题答案
答案:C
提示:| 我不确定的是到底是他们两个中的哪一个,用who即可,这句话是I’m not sure who was the last to leave the lab yesterday的省略形式,不是sure的宾语,不用whom
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