— Why weren't you at the meeting? — I ________ for a long distance call from my sister in America.
—I didn’t go to work yesterday because my car broke down. —You _______ mine.I wasn’t using it then.
Mr Bush is on time for everything. How _______ it be that he was late for the opening ceremony?
—Are you coming to Alice’s party? —I’m not sure.I _______ go to the concert instead.
—May I smoke here? —If you _______, choose a seat in the smoking section.
—Can we ski on this mountain? —Of course.However, at no time _______ you do so alone.