Grammar grade 11

This is a nice place............. Don't we camp here?

While I............ Doing my homework , the phone rang.

I used............. Ride a bike when I was young.

I think tomorrow 's exam .............be easier.

Why.............. You stay at home yesterday?

How............... Water do you drink every day?

Ahmed visited you,...............he?

How long have you.............. learning English?

Look, it................ raining.