((put the verbs in brackets into present simple or past simple))
1)Olha (to ask) for another pair of shoes some minutes ago .
2)We often (to go) shopping at the weekend.
3)Why Oksana often (to take) trolley at the supermarket ?
4)He always (to keep) products in the fridge .​

1) Olha asked for another pair of shoes some minutes ago

2) we often go shopping at the weekend

3) does Oksana often take trolley at the supermarket?

4) he always keeps products in the fridge

Olha asked for another pair of shoes some minutes ago (законченное действие)

We often have gone shopping at the weekend(на неделе- непонятно в какой день)

Why Oksana often(большая подсказка на P.S) takes trolley at the supermarket

He always (большая подсказка на P.P) has kept products in the fridge