Passengers come to the airport an hour before the take-off time. a. are allowed to b. must c. will not able to d. needn’t

b.must

Объяснение:

Passengers must come to the airport an hour before the take-off time.

Номер 1

1. Im going to brush my teeth

2. He is going to repair the car

3. We are going to learn Greek

4. Im going to write some postcards

Номер 2

1. He is not going to help us

2. We are not goint to cook dinner tonight

3. I am not going to celebrate my birthday this year

4. She is not going to stay with Amy

5. We are not going to get up early next Sunday

Номер 3

1.  Is Lucy going to call a taxi?

2. Are you going to sing a song for us?

3. Are you going to cook dinner?

4. Is she going to take a part in the concert?

5. Are they going to leave the house?

Объяснение:

1) 1. I'm going to brush my teeth

2. He is going to repair the car

3. We are going to learn Greek

4. I'm going to write some postcards.

2) 1. He's not going to help us.

2. We're not going to cook dinner tonight.

3. I'm not going to celebrate my birthday this year.

4. She's not going to stay) with Amy.

5. We're not going to get up early next Sunday.

3) 1. Is Lucy going to call a taxi?

2. Are you going to sing a song for us?

3. Are you going to cook /dinner?

4. Is she going to take part in the concert?

5. Are they going to leave the house?