It was three months since he came to our school改错

It was three months since he came to our school改错 he was in school f____only three months It was three months ( )the Smiths returned from abroad.A.since B.before C.after D.until Great changes have take place in the city.It seems quite different____what it was three months agoA、with B、of C、from D、for为什么选C? it took them three months ____ ( build) the bridge . three it recover me took to months 连词成句 Edison was at school for only three months...Edison was at school for only three months（对for only three months 提问)还有一个疑问..如果这里是对only three months 提问呢? first three months It was three years before he came He was out of work for three months与He has been out of work for three months有什么不同? 一道高中英语问题,求各位老师解答!He was told that it would beat least three more months ___ he could recover and return to work.A.when B.before C.since D.that我选的是C,since难道不是接段时间吗?three more months It's three months since they left us.(改为同义句)They _ _ _ _ us since three months ago. It's three months since they left us.(改为同义句)They _ _ _ _ us since three months ago. 英语翻译it ___ the workers three months ___ ___ this bridge It took me three months to finish this kind of creative job（改为同义句） It ___ like three months!A.hears B.looks C.feels D.gets It took us three month to build the house.(改为同义句) We__three months in__the house. Time passed quickly and three months went by .we knew it .