Помогите, пожалуйста. Заранее спасибо))

Use the verbs in Past Perfect, Past Indefinite or Past Continuous, read and translate the sentences:
1. They (to translate) the text by the time the teacher (to come).
2. I (to write) the essay by 12 o'clock.
3. He (to write the essay the day before yesterday.
4. I (to phone) her at seven o'clock last night. She...already (to write) the essay. 5. I (to watch) the football game on TV at 8 o'clock last night.
6. We (to play) chess when the lights (to go out).
7. Natalie (to fly) her kite while her sister (to ride) her bicycle.