Complete the sentences with the correct question tags

Steve hasn`t watered the lawn yet,.....?

We can`t spend much time in your tree house,.......?

They were discussing the news at that time yesterday,.........?

My sister is wearing an embroidered blouse,.........?

My mother won`t do the laundry tomorrow,........?

This souvenir reminded him of his visit to Australia,.......?

You haven`t seen a new play this month,........?

The guests don`t sit on soft seats,..........?

He hasn`t been to a new theatre yet,........?

She isn`t watching a comedy now,.......?

He can become a famous actor,.........?

My brother watched cartoons at the cinema last week,.......?