The Chinese abacus(算盘), officially ______ as a cultural heritage at the 8th Annual UNESCO World Heritage Congress, is another symbol of Chinese wisdom.
#89463
A
having listed
B
listed
C
having been listed
D
listing
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The foreigner tried his best, but he still couldn't make his point _____.
#98272
A
understand
B
understanding
C
to understand
D
understood
Whenever she saw the young man, she would feel her heart __________. 
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A
striking
B
beating
C
hitting
D
knocking
The picture _______ on the wall is painted by my nephew. 
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A
having hung
B
hanging
C
hangs
D
being hung