Some exchange students         with their host families this time yesterday.

—Mr. Lee        to a student when I entered the classroom this morning.
—He is very patient        he is young.

My mother         the dishes when I got home.

Bob took a photo of his girlfriend while she           at the party.

—You were not in when I went to you yesterday.
—Oh, I         for a friend from England at the airport at that moment.

Millie         a picture when Mr.Green came in.

—Mr. Li        to Mary carefully when I entered the classroom this morning.
—He is very patient        he is young.

—Has your friend completed his design?
—Not yet. He      on it last night.

—Sam, what will the weather be like tomorrow?
—Sorry, Mum. I didn’t watch the weather forecast just now. I         a football match.

The twins didn’t go to the theatre. They        the light music all night.