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________ Saturday morning I did my homework.
[ ]
Pandas live ________ China.
[
A
B
C
D
We can watch Beijing Opera _____ TV.
A．in
B．at
C．on
D．from
________ Sunday afternoon．We flew kites．
A．In
B．At
C．From
D．On
Who’s that ______ the gate of the factory?