Question

【题目】People were puzzled _______ they read the book.
A.the first time
B.at the first time
C.for the first time
D.at first

Answer 1

【答案】A
【解析】考查时间状语从句。the first time 第一次，名词词组用作连词，可引导句子；for the first time 第一次，使用时作时间状语，类似副词性，不可引导句子。故选A。