Выполни пожалуйста задание

2. Do you know the answer to the question?
3. I am making a cake right now, so I can’t answer my phone.
4. My sister is trying to do her English homework at the moment, but she doesn’t understand the text.
5. He is thirsty. He needs a drink!
6. The students are working in the library at the moment, but they’re tired and they want to go home.

Present Continuous используется для действий, происходящих сейчас, а Present Simple — для постоянных состояний и глаголов вроде know, understand, need, want.