By the time we arrived at the cinema, the movie *had started* (start).

I *visited* (visit) Paris three times last year.

She *had finished* (finish) her homework before she went to the gym.

We *did not see* (not see) any deer in the forest yesterday.

He *told* (tell) me he had lost his keys.

The children *were* (be) happy because they had won the game.

After Susan *had read* (read) the book, she gave it to her friend.

They *did not go* (not go) to the party last weekend.

Before the 19th century, nobody *had known* (know) about electricity.

When I was young, I *had* (have) a pet rabbit.

Last night, we *watched* (watch) an interesting documentary on TV.

By the time I got your message, I *had already left* (already leave) the office.

*Did* (Do) you enjoy the concert last night?

She *had never seen* (never see) such a beautiful sunset before that day.

After he *had eaten* (eat) dinner, he called his mother.

练习二：填入过去简单时或过去完成时的正确动词形式

She *saw* (see) him at the grocery store after she had finished shopping.

The train *had left* (leave) when we arrived at the station.

He *wrote* (write) an email before he went to bed.

Maria *had never heard* (never hear) of that musician before you mentioned him.

I *did not understand* (not understand) the lesson yesterday.

They *flew* (fly) to New York last summer.

Before 1990, he *had never traveled* (never travel) outside his country.

When I entered the room, everyone *was* (be) silent because the film had already started.

I *met* (meet) my best friend for the first time in high school.

By the time the firefighters arrived, the building *had been* (be) engulfed in flames.

The thieves *had escaped* (escape) before the police arrived.

Before we *reached* (reach) the top of the mountain, we had taken many breaks.

He *forgot* (forget) to lock the door when he left the house.

She *did not call* (not call) me last night, so I called her this morning.

Before last year, I *had not thought* (not think) about studying abroad.