Нужно раскрыть скобки и поставить в past indefinite. we (to go)to the concert two days ago. i (to help) my friend with maths last week. she (to keep) to a diet last month. they (to laugh)at sue yesterday evening. david (to leave) for new york two months ago.
went
helped
kept
laughed
left
went
helped
kept
laughed
left