当约翰在看电视时,what he wants to tell us is not clear.还不清楚,形容词性从句(定语从句)擦黑板的那一位应该受到表扬,高中英语从句的介绍及例子,i didn’t realize how great my mother was until i became a mother.it is the place where he once lived.while john was watching tv,你通过考试了,