With his horse ____to the tree, the man had a rest in the shade.
#91293
A
tying
B
tie
C
being tied
D
tied
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He refused to sell the old house, for it had too many pleasant ________with his childhood. 
#91529
A
associations
B
communications
C
contacts
D
combinations
The children entered, ________ given a present.
#91036
A
each of them
B
each of whom
C
all of whom
D
nobody of them