_ knows what happened to her. It's a mystery.

We don't know _ who lives in that part of the city.

The city is _ the old buildings in the centre of the town. They are not safe.

There is a new 24-_ building in our street.

There's _ wrong with the printer. It's working perfectly.

I waited at the station for an hour, but Matthew was _ to be seen.

The _ in our building is broken. We have to use the stairs.

In 2019, the tallest _ in the world was the Burj Khalifa in Dubai.

_ is at the door. Can you see who it is?

Big Ben is a famous _ in London.

We will send you an e-mail describing the _ at our sports club.

My grandparents live in the _ building on the corner.

I asked Jack to do _ for me but he refused.

The mountains which _ the city are covered in snow in winter.

The _ in the area are worried that a new road will bring more traffic.

The Golden Gate Bridge in San Francisco is made of _ .

Have you seen my sunglases _?

I won't say _ to Bill about that.

Ellie needs _ to live when she goes to university in Glasgow.