Having a trip abroad is certainly good for the old couple, but it remains ______whether they will enjoy it.
—Please accept my apology for taking your umbrella by mistake. — It can happen to anyone.
—Would you like to join us in the walk? — , for I have two important letters to answer.
—Do you think that we should make preparations for the competition in advance? —Exactly. .
—I am terribly sorry I broke your teapot. —
—Can I speak to Mr. Smith, please? — He is having a meeting in the next room.