Correct the mistake in each sentence. Change a, an, any or some.
1 Have you got some pen? 2 Dave has got any classical music CDs. 3 I need a water 4 We haven't got some paper for our project. 5 Is there a escalator near here? 6 Did they see a film stars?

Have you got a pen? Dave has got some classical music CDs. I need some water. We have not got any paper for our project. Is there an escalator near here? Did they see any film stars?