Of the five types of questions in English, and this is perhaps the easiest. It does not require any special knowledge and its creation — even momentary thing. As can be seen from the name issue, asking him to one of the main parts of the sentence, namely, to the subject. Therefore, in this issue of the sentence will be absent, and his place will be one of two interrogative words.
Since the subject answers the questions of «who?» And «what?», Hence their English counterparts are words who? And what?. In the formation of the issue to the subject in the English language (the question to the subject) do not need to change the order of words in a sentence. In a nutshell define the principle of establishing the issue to the subject in the English language, you get the following: take affirmative sentence, remove the subject, and in its place put the appropriate question word — who / what. It is only necessary to remember that in the present tense verb in the sentence will be in the form of the third person singular.
Who saw an accident? — Who saw the accident?
Who married Nick? — Who went to marry Nick?
Who writes a lot of articles? — Who writes many articles?
What needs painting? — What needs to be painted?
What made you feel upset? — What are you upset?
What is near this building? — What is next to this building?
I would also like to note that the question to be defined in the English language is also built on the principle of affirmative proposition. In this case, we need the following question words: what — how, which — that is, whose — whose, how much / how many — how many.
How many students study foreign languages? — How many students learn foreign languages?
What weather irritates you? — What is the weather annoys you?
Whose performance was the best one? — Whose performance was the best?
The answer to the question to the subject in the English language quite brief:
What scared you? — A ghost did. — What are you scared? — Specter.