If you sit in a chair _____a long time, your back may begin to hurt.
#50771
A
at
B
in
C
on
D
for
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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
Remember to spend some time _____ your loved ones because they are not going to be around forever.
#48010
A
from
B
with
C
in
D
on
_______theexam, we'll say good-bye to our dear teachers, classmates as well as ourbeautiful school.
#46042
A
In
B
For
C
After
D
Through