Question

---Could you let me know ________ yesterday ?
---Because the traffic was heavy .

A．why did you come late	B．why you came late
C．why do you come late	D．why you come late

Answer 1

B               

             
試題分析：考查賓語從句。句意 你能告訴我昨天你為什么遲到嗎？因為交通阻塞。Know后面跟著由why引導的賓語從句，用正常語序故排除AC，時間狀語是yesterday，故用一般過去時，所以選B 項。