Listen! Some birds are singing __________ the tree.
#51352
A
in
B
on
C
at
D
of
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All the cups are made of glass ____ the green one. It’s madeof metal.
#50164
A
beside
B
except
C
about
D
with
—Were you late ________ the meeting? —No, I arrived there ten minutes________ the meeting started.
#49450
A
for ; before
B
at ; before
C
for ; till
D
at ; after