The baseball is _____ the floor _____ the desk．
#49228
A
under; on
B
under; under
C
on; on
D
on; under
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Wei Fang is young，but she plays ping-pong ____ her mother.
#50705
A
as good as
B
as well as
C
as better as
D
as best as
My father has worked there ___________.
#49215
A
since five years
B
since 1990
C
for five years ago
D
five years