We should give our seats to ____ old when they get on the bus.( )
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Excuse me, can you tell me ___ way to the Summer Palace?( )
A. a
B. an
C. the
D. /
Can I have ___ look at the photo of your pen friend?( )
A. a
B. an
C. the
D. /
A farmer said he had seen ___ UFO.( )
A. a
B. an
C. the
D. /
﹣ Excuse me. Where is ________ school library?﹣ This way, please.( )
A. an
B. the
C. a