Question

I must find out why＿＿＿＿so many students made the same mistake. A．is it that B．was it wh

I must find out why＿＿＿＿so many students made the same mistake. A．is it that B．was it which C．it is what D．it was that

Answer 1

D

试题分析：考查强调句的特殊问句做宾语从句：句意：我必须弄清楚为什么这么多学生犯同样的错误。why引导的是宾语从句，从句中为强调句型的特殊问句。疑问词why+is it+that…，排除BC，因为是做find out的宾语，从句语序为陈述语序，B排除；所以选D。