We do not use 'at'/'on'/'in' before 'last' and 'next' :
- I'll see you next Friday.
- They got married last March.
We say arrive home/go home/come home/get home etc. (with no preposition):
- When did he arrive home?
- I'm tired. Let's go home.
We do not use a preposition with these verbs:
phone someone/discuss something/enter somewhere (
= go into a place
):
- Did you phone your father yesterday?
- We discussed many things at the meeting.
We say 'ask (someone) a question' (no preposition)