Past Perfect Tense vs Simple Past Tense

When I came back from school, my mother (tidy) my room.

• tidying

• had tidied

• has tidied

When he (arrive) at the station, he found that the train had left.

• had arrived

• arrives

• has arrived

Maria did not go to the supermarket because she (lose) her purse.

• had lose

• losing

• had lost

When I (wake up), I noticed that my brother had gone out.

• had wake up

• woke up

• wakes up

Tom's father was happy with him because he (get) good marks at school.

• has got

• got

• had got

When the doctor arrived at last, the patient (already/ die).

• had already died

• already died

• dies

• is dying

He recognized his penpal easily because he (see) his photo before.

• has seen

• saw

• had seen

• sees

After the group London, they to Edinburgh. (to visit/to fly)

• left, had flown

• had left, flew

• has left, flies

When the friends.... to the cinema, the film ..... (to get/to start)

• got, had already started

• had got, started

• got, has started

Before the students ...... the test they ........off their mobiles. (to start/to switch)

• starts, switches

• started, switched

• started, had switched