I'm thinking about_____ A.what to say it B.how to say C.what to say D.how I to say为什么how to say加个it就对了呢?麻烦大家了.

I'm thinking about_____ A.what to say it B.how to say C.what to say D.how I to say为什么how to say加个it就对了呢?麻烦大家了.
I'm thinking about_____ A.what to say it B.how to say C.what to say D.how I to say
为什么how to say加个it就对了呢?麻烦大家了.

I'm thinking about_____ A.what to say it B.how to say C.what to say D.how I to say为什么how to say加个it就对了呢?麻烦大家了.
应该选择C,但是如果你要的是how的话,say后面是要跟名词的,因此要在say之后加it来代替那个名词,另外what to say中的那个名词是what,故选C,归结一句话为：say之后永远要加内容

think about中about 为介词，后面要跟相当于名词的成分，通常我们用how to say ...来提问，how it to say 相当于一个名词性从句。

因为是how to say something,而没有how to say 的说法,支持2楼，一楼错了