Question

— The light is still on in his room. Do you know _________?
— In order to practise for the English singing party.

A．if he works hard	B．who he is studying with
C．why he is so busy	D．when he will stop working

Answer 1

C

試題分析：if是否；who誰(shuí)；why為什么；when什么時(shí)候。根據(jù)下文，為了這次英語(yǔ)歌唱晚會(huì)做練習(xí)。可知上文問(wèn)的是原因，故選C，他房間的燈還在亮著，你知道他為什么這么忙嗎？故選C。