The little boy’s mom refused to let go _______ his hand when they were in the supermarket.
A. off
B. of
C. about
D. with
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To resolve the problem completely, we have to understand its _________ causes.
A. selective
B. intellectual
C. underlying
D. worthless
Eventually, they had to ________ the walls with exterior beams.
A. inspire
B. educate
C. matter
D. reinforce
She is resolute _______ winning the game through the cooperation of group members.
A. on
B. in
C. to
D. with
It was a ______ toy, but it meant a lot to the child.
A. worthless
B. invaluable
C. priceless
D. exceptional