Past tenses

Yesterday, I . . . to the supermarket.

• went

• go

• gone

• going

While she . . . the rules, the students were taking notes.

• was explaining

• explained

• had explained

• explains

If I . . . about the traffic, I would have left earlier.

• have know

• knew

• had know

• know

They . . . four hours before they found a gas station.

• driving

• drive

• drove

• had been driving

As soon as I saw him, I . . . his face.

• had recognized

• recognized

• was recognizing

• recognize

She . . . in New York before moving to Canada.

• is used to living

• had used to live

• was used to living

• used to live

We . . . each other in years when we met again.

• don't see

• hadn't seen

• didn't see

• haven't seen

By the time we arrived, the concert . . .

• starts

• was starting

• had already started

• started

While we . . . at the airport, our flight got delayed.

• waits

• waited

• were waiting

• had been waiting

She said she . . . the report the day before.

• was finishing

• had finished

• finished

• finishes