After she considered the problem, she got a tall box to stand ________.
#28199
A
on
B
up
C
above
D
by
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Yesterday, I met my old friend ________, which gave me a big surprise.
#26851
A
in return
B
on purpose
C
by chance
D
in case
Mr Chen was ___ early thirthies when he went abroad to have his further studies.
#28789
A
of the
B
in the
C
in his
D
on his