Complete the dialogue with may (not) / might (not) or could and the verbs in brackets. More than one answer is possible.

A: Look! There's something in the cave. I think it's an animal. B: It's tied up and the water is coming in. It may not escape. A: There's someone on the beach. She might go into the cave. B: She may help it to escape. A: But she's looking at her phone - she may not see the cave. B: Look, there's another boat. Someone may call the emergency services. A: But they might not arrive in time. Let's try and rescue it now ... B: I've got it! Oh, no! It's just a big brown bag!