It can be done in a day.

Couldn't you help me with this task?

I am very excited, really looking forward to the concert, and absolutely can't wait to see my favorite band.

I shall send for a doctor at once.

It's all too easy to make mistakes.

There have been some strange goings-on lately.

He may be there.

You must be less impatient.

The building will be made of concrete on a steel framework.

Since it was Sunday, the store was closed.