With his attention _________ on his book, he didn’t notice someone entering his room.
| A．concentrating | B．concentrated | C．to concentrate | D．concentrates |
.Our boss suggested we clerks ______ good sales methods and his words suggested that ______ did the best ______ the best prize.
| A．think of; who; would be given | B．thought of; whoever; be given |
| C．think of; whoever; would be given | D．thought of; who; was given |
______ a person looks like is not as important as ______ he or she grows up to be.
| A．How; how | B．What; that | C．What; what | D．How; what |
They stayed with me three weeks, ______ they drank all the wine I had.
| A．which | B．which time | C．during which time | D．during which |
—I ______ for you for two hours, but in vain. Where did you go?
—I ______ at my uncle’s.
| A．had looked; may have stayed | B．looked; must have stayed |
| C．have looked; may be staying | D．looked; must be staying |
.This isn’t the most difficult one of the new words that ______ me in the passage.
| A．puzzled | B．puzzles | C．is puzzling | D．have puzzled |