Question

I don’t know _____ yesterday. A．when he will leave B．when will he leave C．when he left

I don’t know _____ yesterday. A．when he will leave B．when will he leave C．when he left D．when did he leave

Answer 1

C

试题分析：句意:我不知道他昨天什么时候离开的。本题考查的是宾语从句。从句中应该用陈述语序，故我们可以排除B和D；而且句子中有时间状语yesterday 昨天，故从句中应该用一般过去时，A是一般将来时，故选C。