Her neighbors used to hear her ________ in the garden.
A. to sing
B. sang
C. to have sung
D. sing
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_________ no Japanese, she communicates with Japanese friends by using Chinese characters.
A. to know
B. knows
C. knowing
D. know
The boy seemed to be _________ about everything around him.
A. curious
B. interested
C. fond
D. satisfying
It was a really __________ match.
A. excite
B. excited
C. excitedly
D. exciting
After a long __________ for the murder weapon, the police found a knife.
A. search
B. look
C. study
D. examination