My grandfather is as as a young man and hates sitting around doing nothing all day.
| A．enthusiastic | B．energetic | C．talkative | D．sensitive |
_______, his idea was accepted by all the people at the meeting.
| A．Strange as it might sound | B．Strange although it might sound |
| C．As it might sound strange | D．As strange it might sound |
_______ about wild plants that they decided to make a trip to Madagascar for further research.
| A．So curious the couple were | B．Such curious the couple were |
| C．Such curious were the couple | D．So curious were the couple |
_______ that he made an obvious mistake, Jeff went on with his speech.
| A．Not realized | B．Not to realize |
| C．Not to have realized | D．Not realizing |
ack went to college last year, _______ to return home until he achieves his goal.
| A．determined not | B．determining not |
| C．not determined | D．not determining |
_______ in the queue for half an hour, Tom suddenly realized that he had left his wallet at home.
| A．To wait | B．Having waited | C．Have waited | D．To have waited |