He is absent ____ is often the case.
| A．what | B．which | C．who | D．as |
His house burnt down in a big fire.Was the base on which it had stood.
| A．What remained | B．All that remaining |
| C．What was remained | D．All what remained |
Everyone agreed to the suggestion that the machineat once.
| A．should be repaired | B．be repaired |
| C．must be repaired | D．be repaired |
The country’s populationsmall, and most of its populationin the mountainous areas.
| A．are; lives | B．are; live | C．is; live | D．is; lives |
—What caused the party to be put off?
—the invitations.
| A．Tom delayed sending | B．Tom’s delaying sending |
| C．Tom delaying sending | D．Tom delayed to send |
I climbed the stairs slowly with a big suitcase, my father with two more.
| A．followed | B．was following | C．following | D．having following |