疑问词的位置【yíwèncí de wèizhi】

A Chinese question word stays in the position the answer would occupy. Nothing is moved to the front.

The answer is 他吃面条, and 什么 is standing exactly where 面条 stands. English hauls "what" to the start of the sentence; Chinese leaves it alone.

Ask about the subject, and the question word goes first

Not because it is a question, but because that is where the subject lives.

Both are correct, and they differ only in which noun is the topic.

The rest of the sentence is untouched

A time word stays before the verb, a place stays with 在 before the verb, and no auxiliary appears from nowhere.

Writing it the English way gives nǎ r5哪儿nǐ你gōng zuò工作, which is wrong.

No 吗

A question word already makes the sentence a question, so 吗 has nothing to do. nǐ你qù去nǎ r5哪儿má吗 is wrong.

Building the answer from the question

Because the slot does not move, the answer is the question with the answer substituted in.