Prepositions - at 8 o’clock / on Monday / in April

Question 1

We say:
     at the weekend
     at night
     at Christmas
     at the end of …
     at the moment

Answer 1

…Are you going away at the weekend?
…I can’t sleep at night.
…Where will you be at Christmas? (but on Christmas Day)
…I’m going on holiday at the end of October.
…Are you busy at the moment

Question 2

in the morning / in the afternoon / in the evening/ in April / in 2013 / in summer / in spring
but
on Monday morning / on Tuesday afternoon / on Friday evening / on Saturday night etc.

Answer 2

…I always feel good in the morning.
…Do you often go out in the evening?

…I’m meeting Jackie on Monday morning.
…Are you doing anything on Saturday night?

Question 3

We do NOT use at/on/in before:
this … (this morning / this week etc.)
last … (last August / last week etc.)
next … (next Monday / next week etc.)
every … (every day / every week etc.)

Answer 3

…Are you going out this evening?
….We go on holiday every summer.
…Last summer we went to Canada.I’m leaving next Monday. (not on next Monday)

Question 4

in five minutes / in a few days / in six weeks / in two years etc.

Answer 4

…Hurry! The train leaves in five minutes. (= it leaves five minutes from now)
…Bye! I’ll see you in a few days. (= a few days from now)