Peoplewerepuzzled
问题详情：
People were puzzled _______ they read the book.
A. the first time B. at the first time C. for the first time D. at first
【回答】
A
知识点：词组 短语
题型：选择题
问题详情：
People were puzzled _______ they read the book.
A. the first time B. at the first time C. for the first time D. at first
【回答】
A
知识点：词组 短语
题型：选择题
