l was worried about ___it was safe A.what B.that C.if D.whether答案为什么是D而不是C?

He worried about you He was worried about you都对吗. He worried about you yesterday He was worried about you yesterday 都对吗 Her bad health ____ her parents much last year.怎么填,为什么?A.was worried B.was worried about C.worried D.worried about l was worried about ___it was safe A.what B.that C.if D.whether答案为什么是D而不是C? I worry about...的过去式是不是iI worried about 但是不是只有be worried about和worry about吗?还是英语中只说I was worried about She was worried about the () f the children.(safe) She was worried about making new friends 等于什么 I was really worried about you,fear you are hurt! I was never worried about this.为什么不是I am never worried about this.什么时候用am 什么时候用was She was worried about the lost book and the librarians were worried,too同意句 i was worried about my future.是什么句型结构?请解释为什么要用worried? 如题 were worried/my head/but I/People/about something /far/about/more/threatening/was worried连词成句 she was worried about 和she worried about 哪个对worry worried 怎么用 好晕啊.比如说 她担心我自己一个人在家 （过去式） 该怎么用 请教一道完形填空题 有关worry 这个词He was ( )that his children would be upset.worried 为什么?不是be worried about worried that 不是缺少about xiaohua was very worried about the sight为什么这里要把about 换成at be worried about造句 be worried about sth. 英语辨析worried about worried at