since we didn't know what happened,we were very frightened.这里的frightened 是非谓语么?这个是什么用法

since we didn't know what happened,we were very frightened.这里的frightened 是非谓语么?这个是什么用法 we didn't know what we should do next.(改为同义句）we didn't know()()next两空 We didn't know what we should do next.We didn't know what __ __ next We Didn't Want You To Know 如题1 I didn’t know Since i didn't know what to do,.改成_ _what to do It is h___ a year since we didn't meet each other.填 hardly 还是 half we would rather that they______about it!A.not to know B.didn't know C.not knowingD.don't know we never told him he couldn't ,so he didn't know.he just left it 英语翻译We didn‘t tell him he probably would never make the team,so he didn’t know. we lost our way and didn't know what to do last night 同意句we ___ ____ and didn't know what to do last night I Didn't Know 歌词 He didn't know ___ use it was made of since he was too young.what 还是 that The thief stole and his purse（） he didn't know it.a.since b.so c.but d.or i didn't since you ask . 英语翻译she walked in and said she didn't want to know anymore anymore,anymore before I could ask why,she was gone out the door out the door,out the door I didn't know didn't know,didn't know what I'd done,but now I just can't move on since she l 8.24,It's________thet we didn't know about this before.A annoyed B annoying C annoy He didn't i______ himself at the beginning,so we know very little about him.