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How long has peter been reading the book?选项再补充A an hour agoB before an hour agoC since an hour agoD for an hour ago
题目详情
How long has peter been reading the book?选项再补充
A an hour ago
B before an hour ago
C since an hour ago
D for an hour ago
A an hour ago
B before an hour ago
C since an hour ago
D for an hour ago
▼优质解答
答案和解析
C 典型的现在完成时的时间状语
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