The chairman thought _____ necessary to invite Professor Smith to speak at the meeting.
| A．that | B．it | C．this | D．him |
—The terrible accident is under investigation.
—Actually, quicker action ______ those workers trapped in the mine.
| A．might have saved | B．must have saved | C．should have saved | D．could have saved |
— Why didn’t you try to finish the composition?
— I tried to , but I could, the bell rang announcing the end of the examination time.
| A．until | B．when | C．before | D．after |
—I don’t have any change with me. Will you pay the bill for me?
—______.
| A．That’s fine | B．Nothing serious | C．No problem | D．Never mind |
So convenient ______ that many people would like to do that.
| A．is shopping on net | B．shopping on net does |
| C．does shopping on net | D．shopping on net is |
—Shall I help you carry your travel case to the train, Granny?
—Oh, no , my boy. It is ________ heavy. Thank you, anyway.
| A．so | B．not much | C．rather | D．not that |