Bill was the telephone.
| A．considered inventing |
| B．considered to have discovered |
| C．considering having invented |
| D．considered to have invented |
This is the office _____ my parents are visiting now.
| A．which | B．what | C．who | D．where |
Everybody got ____ when they heard the ____ story.
| A．shocking; frightened | B．shocking; frightening |
| C．shocked; frightening | D．shocked; frightened |
Nobody can imagine what difficulty we had _____ home in the snowstorm.
| A．walking | B．to walk | C．walked | D．to walking |
One minute she burst into ____, and the next she burst out ____. We just couldn’t catch her mood at any moment.
| A．crying; laughter | B．tears; laughing |
| C．tears; laughter | D．crying; laughing |
Tom ____ have kept his word. I wonder why he changed his mind.
A. must B. should C. need D would