——toimproveourEnglish?如何选择？题：——t
题：——to imve our English？ A)what do you think we should do ; B)do you think what we should do ; C)what do you think should we; D)do you think what should we do ; 拿不准答案。请问如何选择，原因是什么。
A do you think作插入语,原句是:What should we do to improve our English? 加入插入语后,语序发生变化. 我们正在学这个语法.