What do you think is the most difficult when learning English

Do you think that what is happiness What food do you think is healthy? what do you think is science? What do you think What do you think happiness is 及 Which do you think is better?分析句子成份 What do you think he is doing还是Whai do you think is he doing? What _____ the best book?A.you think isB.do you think isC.is do you thinkD.do you think what animal do you think is e_____?a Dolphin is. do you think what it is?能把what提前吗,变成what do you think it is?如果把do you think看作插入语如果把do you think看作插入语,就应该是what (do you think ) is it?so,what do you think it is?和 what (do you think ) is it?两种 do you think what he said is right =do you think ____ ____ ____ridht. 英语翻译What do you think is _____ _____ ______ What do you think is the most traditionai food? what do you think( is/are ) the most important things what do you think is a good heart what do you think _____this picture?It is very beautiful. Do you think what he said is m________ what kind of food do you think is healthy? what a kind of person do you think charlie is