Complete: at, in or on.
1) 1st may

2) 1991

3) the weekend

4) 8: 30 p.m.

5) the morning

1) one 1st May

2) in 1991

3) at  the weekend

4) at 8:30 p.m.

5) in the morning

Объяснение:

My birthday 1st May

My mum borned in 1991

I go in shopping mall at the weekend

I wake up on morning at8:30 p.m

I went in supermarket in the morning