68. When the boy playing by the river fell into the river, I was out of the room _______.
They have lived in this village________several years ago.
That was really a splendid evening. It's years________I enjoyed myself so much.
—I went to the beach and got plenty of rest. —________. You looked tired last time I saw you.
—Do you mind if I smoke here? —________.
Can those________at the back of the classroom hear me?