Grammar: Mixed questions

I regret .......... so much time on my phone last year.

I'd rather .......... a book than watch TV tonight.

I wish I .......... harder for the test last week.

This is the café .......... we first met.

Sami .......... the window. He wasn't even at home at the time.

'Where are you going?' he asked me. The correct reported question is: He asked me where .......... .

People believe that the castle is 800 years old. The correct impersonal passive form of the sentence above is ..........

If I had more free time, I'd learn to play the oud. This means that ..........

I have never seen such a crowded market. The correct form of negative inversion of the sentence above is ..........

The test was very difficult. .......... , most students passed it.

My uncle, .......... car was stolen last night, called the police.

The keys aren't in my bag. I .......... them at school.

Visitors are not allowed to take photos in the museum. The phrase 'are not allowed to' is used to indicate ..........

I play .......... piano, but my brother prefers .......... football.

By next year, scientists .......... a new way to clean the oceans, I'm sure.

When I was younger, I .......... walk to school every day.