It's diffcult _____(介）_____(we）students______(learn)English_

It's diffcult _____(介）_____(we）students______(learn)English_ we find it interesting to learn _____（swim） It's used for _____ _____ _____(探索太空） We’d better _____(work）hard because it’s hard _____（fine）in we should try to learn best（改为同意句） we_____ _____ _____ to le we should try to learn best（改为同义句） we_____ _____ _____ to le It's _____ hard work,_____ we need help. It's not easy _____(learn) English well. _____ ______ it's important to learn a second language. I would like__maths,I think it's diffcult to learn The teacher _____ his students______ five groups.. It's a _____(下雨）day so we have to stay at home.