4 the There wasn't somebody to help mum to ent decorate the room before my birthday, so she did it myself.

There wasn't anybody to help mum to decorate the room before my birthday, so she did it myself. Explanation: The article "the" is unnecessary. The word "somebody" should be replaced with "anybody" to make the sentence grammatically correct in the context of a negative statement. The word "ent" is unnecessary.