The text is too difficult. The explanation of our teacher will help make it easy ________.
#88517
A
to understand
B
to be understood
C
understood
D
understanding
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_____ their inexperience, they’ve done a good job. 
#98745
A
Given
B
To give
C
Giving
D
To have given
 You'd better not have the light _____ all day long.
#98352
A
burning
B
burned
C
to burn
D
being burnt