1/为什么是Do you know how many colours there are in the rainbow?而不是Do you know how many colours are there in the rainbow?2/How many colours are there in the rainbow?是否正确?

为什么是Do you know what is the matter I would do anything for you,but you don't know ho 为什么是Do you want to know what I do?而不是what am do? where isTom do you know?合为一句,为什么是do you know where tom is? Do you know what letter is a kind of drink?为什么是茶 DO you know the gilr talking to our English teacher 为什么是talking? do you know the difficulty he had________the work(finishing)为什么是finishing Do you know the boy lying under the big tree?为什么是定语? 为什么是Do you know how old he is而不是he is? Do you know that后为什么是动词过去式,前面不是有do吗?Do you know that I fell in love with you at the frist sight,后面为什么是fell?前面不是有do要用原型吗? 1/为什么是Do you know how many colours there are in the rainbow?而不是Do you know how many colours are there in the rainbow?2/How many colours are there in the rainbow?是否正确? do you know what kind of work ___ ____ do 为什么是 I could而不是 could I do you know the answer .no,this question isdo you know the answer .no,this question is ___for me.为什么是hard,说明白 do you know the answer .no,this question isdo you know the answer .no,this question is ___for me.为什么是hard Then what is it used ,do you know?这里为什么是is it?而不是it is?是Then what is it used （for），do you know？这里为什么是is it？而不是it is？ Then what is it used for,do you know?这里为什么是is it?而不是it is? Do you know how large China's population is?这句话中,为什么是China‘s 而不是 Chinese? what do you know