16. He gave a ________smile.
—Oh dear! I’ve just broken a window.—______.It can’t be helped.
—Do you think our basketballers played very well yesterday?—_____.
—I’ll take at least 2 hours to do this!—Oh, _____!I could do it in 30 minutes.
Sorry to _____ you, but could I ask a quick question?—No problem.
—How long are you staying? —I don’t know. _____.