His mother ________ (cook)when he came back.

We found it very interesting ________ (1earn)English.

1'm sorry________ (trouble)you.

She liked living in the country，because it was very ________there.(quietly)

Look! The children are playing games ________in the park. How ________they are!(happy).

The children always makes a lot of ________.They are very________.(noise)

I don't want to t________ her because this is not a serious problem.

The worker was too tired. He fell a________ soon.

I was watching TV when l heard a k________ at the door.

Don't make any n________ .They are doing their homework.