Help me please

5. Helen received grant for her research work two weeks ago. (What)
6. Lora played tennis with her group-mates an hour ago. (Who)
7. I took a shower because the weather was hot. (Why)
8. The computer cost two thousand dollars. (How much)
9. The lecture began at 9.00 o’clock yesterday. (When)
10. She took an interesting book from the library. (What)

1. I can stay in bed tomorrow morning because I don't have to work.
2. Whatever you do, you mustn't touch that switch. It`s very dangerous.
3. You mustn't forget what I told you. It`s very important.
4. We don't have to leave yet. We`ve got plenty of time.
5. Ann was feeling ill last night. She had to leave the party early.
6. I had to go to the bank yesterday to get some money.
7. The windows are very dirty. I must clean them.
8. The windows aren`t dirty. You don't have to clean them.
9. We arrived home very late last night. We had to wait half an hour for a taxi.
10. These cakes are very nice. You must have one.
11. We don't have to take an umbrella. It`s not going to rain.

В автобусе (On a bus)Passenger: One ticket, please.  Пассажир: Один билет
Bus driver: Here you are.Водитель автобуса: Вот, возьмите.  Passenger: How much is the fare?Пассажир: Какова стоимость билета?  Bus driver: One dollar fifty.Водитель автобуса: Один доллар, пятьдесят центов.  Passenger: Will you accept a two-dollar bill?Пассажир: Примете ли Вы купюру в два доллара?  Bus driver: No, only exact change or a token.Водитель автобуса: Нет, только точную сумму или проездной жетон.  Passenger: Do I have to pay for a three-year-old child?Пассажир: Должен ли я платить за трёхлетнего ребенка?  Bus driver: No, children under seven ride free.Водитель автобуса: Нет, дети в возрасте до семи лет проезжают бесплатно.  Passenger: Ok, thank you.Пассажир: Хорошо Водитель автобуса: Не могли бы вы отступить от двери и отойти назад? Пусть другие пассажиры войдут.  Passenger: Yes, of course. No problem.Пассажир: Да, конечно. Мне не сложно.