3. Complete the sentences with the correct form of *have to*. You have to wear a helmet when you ride a bike. It's obligatory! A. X: ¹ (you) be eighteen to vote in your country? Y: Yes, you ². But to become president you ³ be at least thirty-five. B. I can't wear jeans to school. All the girls ⁴ wear a blue skirt. But my brother ⁵ wants. That's not fair! He can wear a shirt and a tie. He can wear what he wants.

Правильные ответы:

A.

1. Do you have to be eighteen to vote in your country?

2. Yes, you do.

3. But to become president you have to be at least thirty-five.

B. 4. All the girls have to wear a blue skirt. 5. But my brother doesn't have to. That's not fair!

Объяснение:

• Have to — должен, обязан. Используется для выражения необходимости или обязательства.

• Do you have to...? — нужно ли тебе...? Используется для вопросов с you.

• Do — краткий положительный ответ на вопрос с have to.

• Has to — должен (для he, she, it).

• Doesn't have to — не обязан, не должен (отсутствие необходимости).

В предложении B брату не обязательно носить синюю юбку, поэтому используется doesn't have to.