F Fill in the question tag. e.g. Recycling isn't that hard, is it? 30 Camels live in the desert, ...? 31 Sarah didn't collect the cans and newspapers, ...? 32 Sarah has called her mum, ...? 33 Gorillas are amazing animals, ...? 34 It can't be true, ...?

Alright, I will fill in the question tags for the following sentences:

1. Camels live in the desert, don't they?
2. Sarah didn't collect the cans and newspapers, did she?
3. Sarah has called her mum, hasn't she?
4. Gorillas are amazing animals, aren't they?
5. It can't be true, can it?