we have to be ___ when we do everything.

we have to be ___ when we do everything. Everything we need to do ___(do) when do we have to be doing the research? When do we have to give______our compositions 英语翻译when we do everything we should to the best of one's abi 英语翻译We do what we have to when we fall in love.We say what w we have to be careful how we do this这句中 how we do this是什么成分? When do we have to give______our compositions?为什么? We have to ___ ___ ___ him . We have many_ to do,so we have no time ___ (exercise) 1.my mum told us to do everything( )when we were still young Do you remember we often ___ to the West Lake when we were t