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Some animals sleep during _____ day.
A．the B．a C．an D．\
I have _____salad for lunch.
A．a B．the C．an D．some
We can’t see ______ flowers in the picture.
A．some B．a C．an D．any
They can’t see flowers in the picture.
A．some
B．a
C．an
D．any
We only have _______ shower.
B．an
C．the
D．one