There vs They're vs Their

Mel and Kim just called to let us know ________ coming for dinner.

I like visiting London but I wouldn't want to live ________.

My friends are arriving today.  ________ coming from New York.

________ is no reason for me to stay. 

I can’t wait to see the looks on ________ faces when they find out.

They've forgotten ________ bag.

They can't make up ________ minds.

I wonder if ________ planning to make it a fancy dress party

________ are probably several mistakes.

________ is a badger in the garden!

Do you know what ________ phone number is?

________ was once a bird called a 'dodo'.

The students are happy. They've finished ________ homework.

I don't know who they are but I think ________ in my brother's class.

________ are two reasons why I am against this idea.

I don't think ________ coming.

Where's the cat?  Over ________.

________ is treasure buried on that island

I've met them before but I don't know ______ names.

I know ________ considering buying a new computer.