Hello(,) dear teacher and classmates. Hello(,) dear teacher and classmates.

Hello dearGood morning/afternoon teacher and classmatepeers. Good morning/afternoon teacher and peers.

I am assuming it is a speech form; You could also say: “Chairperson, ladies and gentlemen” I’m not sure if other countries say this, but in public speaking in Australia, this is a common formal first phrase to address the audience !

I will answer the question you asked: What object do you use every day and where is it located? I will answer the question you asked: What object do you use every day and where is it located?

every day (two words): I use it every day. Everyday (one word) is an adjective: This is my everyday notebook.

I will now answer the question youthat you’ve asked: Wwhat object do you use everyday and where is it located? I will now answer the question that you’ve asked: what object do you use everyday and where is it located?

If it is a speech, it is a bit more formal, and thus too formal to omit the ‘have’ from ‘you (have) asked’. Without the ‘now’ it sounds incomplete; with it it sounds natural !

I always use my studythis one notebook., specifically for study. I always use this one notebook, specifically for study.

This is very natural. We don’t usually say ‘study notebook’, it is not a common phrase, however, the phrase above is one I use. We usually say the object then say it’s purpose, as I have corrected :)

It is located in my desk, which is set oin my bedroom. It is located in my desk, which is in my bedroom.

It is located ion mythe desk, which is set o in my bedroom. It is located on the desk in my room.