— David, your mother’s birthday is _____. Let’s think about how to celebrate it. —OK, Dad.
—I saw Mr Smith in the office at ten yesterday morning. —That’s impossible.He________an English party with us then.
________I was in the US,I made a lot of American friends.
—I don’t know________. —Because he has to look after his mother.
She________to an English program while her parents________TV.
—I didn’t see you at the beginning of the party last night. —I________on nay biology report at that time.