I don't know -----it next .A wha t to do B how to do C how can I _英语解答

I don't know -----it next .A wha t to do B how to do C how can I do D what can I do
答案为什么是B

人气：422 ℃　时间：2019-09-17 06:55:21

解答

因为有个it,宾语,因此不用what提问.what和it是一个成分.所以用how,如何做它.
CD 语序不对,要用陈述句语序