Put the verbs in brackets into the Past Continuous What (you/do) last summer?
Sam (take) notes during the meeting.
The builders (work) hard because they wanted to finish the repairs before night.
We (plan) to go to the theatre, but we stayed home instead.
He (play) computer games all day on Monday.

What were you doing last summer?

Sam was taking notes during the meeting.

The builders were working hard because they wanted to finish the repairs before night.

We were planning to go to the theatre, but we stayed home instead.

He was playing computer games all day on Monday.

PS: Past Continuous

was/were + Ving       (v-verb)

Was/were+V-ing