The fire, believed to due to illegal construction on the building’s roof, was brought under control after an hour.
| A．have occurred | B．occur |
| C．have been occurring | D．be occurring |
The new method is indeed advanced and effective, quite different from _____ already in use.
| A．it | B．what | C．that | D．which |
She would move quietly up to the sparrow on a small tree just to get a better look, her face __________ with childlike expressions at one of God’s simple wonders.
| A．shone | B．shining |
| C．having shone | D．being shone |
Bats are surprisingly long-lived creatures, some ______ a life span of around 20 years.
| A．having | B．had | C．have | D．to have |
—Are you going to invite Jack to our party?
—No, but he’s welcome to come along, ______ that he behaves himself.
| A．concerning | B．considering | C．regarding | D．providing |
She is one of the most helpful, ______ and reliable people I have ever had the pleasure to know.
| A．apparent | B．passive | C．doubtful | D．considerate |