2. A. The first conditional describes future events that are likely to happen. First conditional = real conditions. if X happens, Y will happen Examples: 1. If Mary comes, she'll want to drive. 2. If you give me some money, I'll pay you back tomorrow.
3. B. You can use the word unless to mean ‘if not’ Examples: I won’t go if you don’t come with me = I won’t go unless you come with me =