When I saw mum nod _______ to me, I calmed down and went on with my acting.

—I heard a bus accident happened yesterday.—The bus crashed. Luckily, only a few passengers aboard were _____ injured in the traffic accident.

If what your friend comes up with surprise you, don’t reject it immediately. _____, imagine that it is true.

You must attend the meeting ____ at ten o’clock, as it is scheduled—not a minute early or late．

The computer, ______________ help we human beings have stepped into the information age, should be made full use of to promote the social development.