Jack has been in low spirits these days and i have not got the slightest idea what it was that has bothered him .
问题描述：
Jack has been in low spirits these days and i have not got the slightest idea what it was that has bothered him .
我想知道what it was 在这句话中作什么成分
答
杰克这几天精神不好,我一点也不知道是什么让他这么心烦.and 连接两个独立的句子句子1 :Jack has been in low spirits these days 句子2:i have not got the slightest idea what it was that has bothered him 把句...