У Макдональдса красный цвет.
1. He does not speak to his friends.
Does he speak to his friends?
2. They do not watch TV.
Do they watch TV?
1.How long had they been preparing for their wedding?
В основном по временам, а именно Present Simple, Present Continuous, Present Perfect Continuous и Present Perfect Simple.
Ну и конечно письмо другу