Ответ:

You MUST do your homework

COULD I go outside, please?

I NEED TO clean my room

You SHOULD try swimming

I CAN'T ride a bike

удачного дня)

Объяснение:

1. You must help your parents
2. You friend should have helped you in that situation
3. I don't know, but it might be the only way to cross the canyon
4. You needn't have bought a milk because i already got it yesterday
5. He's able to find any street in Moskow