I ______ Mary until she started going to my school.A .wasn't knowing .B.didn't know. 为什么

I ______ Mary until she started going to my school.A .wasn't knowing .B.didn't know. 为什么 下列选项哪一个正确?为什么?I ______ Mary until she started going to my school.A .wasn't knowing .B.didn't know. I help Mary with her homework.改为同义句I help Mary ______ ______ homework 我有比Mary更酷的发型 I have cooler ______ than Mary _____.翻译 --I have never been to Singapore.-----______.A.so has mary B.mary has too C.mary has,eitherD,neither has mary Mary said to Yang MeiI will have to stay in the lab until tomorrow改为间接引语 Mary had finished her homework ____ the time I got home.A.until B.by C.at D.when Mary had finished her homework ___the time i got home.A.until B.by C.at D.when 英语句型转换,速求4.Mary showed me a photo yesterday.(变被动句) I ______ ______ a photo ______ Mary yesterday.A photo ______ ______ ______ me ______ Mary yesterday.5.He spent 100 yuan on the book.He ______ 100 yuan ______ the book.He _____ Please wait here until I ______ you.A、 called B、 call C、 will call D、calling I will not go to sleep until my homework ______(finish) I must wait until this term ______.(over/is over/will over) I didn't go to Mary's home . I went to the cinema .合并成一句I went to the cinema _______ ______ going to Mary's home. I ______ believe it _______ I see it with my own eyes.A.won’t; and B.will; but C.will; until D.won’t; until 1.Edison is a famous American ______(science).2.I want to be an ______(art).3.Mary is _____(interest) in reading.4.She likes _____ (paint).5.Mary I ask some ______ (question)? I didn't go to bed ______ I finished my math homework yesterday evening.A whenB as soon asC until I can only give you an answer ______ I think it over 是用until还是before,或者还是什么, i tried to call you ______ i heard from him ,but you were not in / since while until because