Choose the correct proposition:
They started the course on/at/in April
Let's meet on/in/at 8.30
I went to university in/at/on the 1990s
What would you like to do at/in/on the morning?
We always go shopping on/in/at in the weekend
Wendy bought a car at/on/in November
Do you eat special food at/on/in Christmas?
What did he do at/on/in Sunday?
I'll give you a call at/on/in two weeks' time
In/on/at New Year's Day we often go to the beach
-In April -At 8.30 -on the 1990 -In the morning - on the weekend -In november -At christmas -On sunday - Je sais pas -Je crois que c'est On New Year's day