we do not know when man first began to use salt,but we do know that it has been used throughout his这是什么意思!

We do not know when we shall give a fashion show.同义句we do not know()()()()()() I do not know when we shall leave for Nanjing.I do not know _____ _____ leave for Nanjing. When shall we meet?I do not know(合为一句) I do not know ___ ___ meet I do not know when we shall leave for Nanjing.I do not know when ____leave for Nanjing.改简单句 We do not know when it should be leave 同义句是什么 -We have kept the promise,do not know when,had vanished. we do not know when man first began to use salt,but we do know that it has been used throughout his这是什么意思! 改错 1.what cd did you listen to ____(recent）?2.we do not know when ____( go) home We usually____each other when we do not know what to do .解释句意并说明理由A look atB look afterC look forD look up why do you add me we do not know us 同义句转换：Do you know when we should start?Do you know when ( ) ( ) What we know is not much.What we do not know is immense. We don not know when (finish) the work .如何填 I do not know that we have no What we know is nothing; what we do not know is immense中文是什么意思? When young.We do not understand the hardships of love He does not know() A when to do B when to do C where to do D how to do 1 I have not the i___in your plan.填什么?2 Do you know when we will visit the Great Wall?