Complete the sentence with the correct form of the Past Simple or Past Perfect Tense. Срочно пожалуйста! Даю 20 балов!

1) We already ( to eat) when Sam ( to come) home.

2) When I ( to get) to the airport I discovered I ( to forget) my passport.

3) How many tickets you ( to sell ) by 7 o’clock yesterday?

4) The hurricane ( not to stop) by the end of the day.

5) Olga never ( to skate) before her friends ( to take) her to the skating-rink.

6) I ( to feel) tired after I ( to paint) the walls of the kitchen.

7) They ( not to plan) their route to the lake,that’s why they ( to get)lost.

8) Dave ( to check) the mail before he ( to turn off) his computer.

9) Dolly ( to give) first aid before the arrival of the ambulance.

10) We ( can not) make a chocolate cake because we ( not to buy) any milk.