—What can you do, Lin Tao?     —______.

—Sir, would you mind my sitting next to you?—__________. My father will sit here in a minute.

—The concert hall is large enough to hold more than 3,000 people.—______. Did you say 3,000?

It usually takes me forty minutes _______ the model plane.

—What a fine day! Shall we go picnicking.—         . But we need to be home before six o’clock for the football match.