Some of the sentences are incorrect. Find 5 mistakes and mark them blue. Mark only the incorrect word.

Решение:

В предложениях были найдены следующие ошибки:

1. I am brush my hair now. - Правильно: I brush my hair now. (Present Simple).
2. My mum are checking the weather forecast for tomorrow. - Правильно: My mum is checking the weather forecast for tomorrow. (Present Continuous, 'mum' - ед. число).
3. Ben doesn't dancing flamenco, he is dancing Hip-Hop right now. - Правильно: Ben doesn't dance flamenco, he is dancing Hip-Hop right now. (После 'doesn't' используется инфинитив глагола).
4. Claude am not reading comics at the moment. - Правильно: Claude is not reading comics at the moment. (Present Continuous, 'Claude' - ед. число).
5. You are use my laptop now! I didn't let you do it! - Правильно: You are using my laptop now! I didn't let you do it! (Present Continuous).

Ответ: am, are, dancing, am, are use.