Don't worry - I'll pay (a)   the tickets.

I borrowed a pen (a)   my classmate.

I've been waiting (a)   the bus for more than twenty minutes!

Julie: "What time shall we eat dinner?" Gill: "It depends (a)   John - we'll eat when he gets home".

When we arrived (a)   the cinema, the film had already started.

Please explain this problem (a)   us.

She was listening (a)   the radio when the doorbell rang.

John worries (a)   his exam results all the time.

My flatmate listens (a)   a lot of jazz.

David paid (a)   the drinks.

Who does that house belong (a)   ?

Don't worry (a)   Gemma, she'll be fine.

She borrowed a jumper (a)   Julie.

Please be quiet. I need to concentrate (a)   this book.

I want to go to the beach tomorrow but it depends (a)   the weather.

Who are you waiting (a)   ?

When will we arrive (a)   Beijing?

A policeman explained (a)   the children why they should never run across the road.