Do you think Maths __________ useful subject?
#33851
A
is a
B
is an
C
are a
D
are an
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—What’s that?— It’s __________ orange clock, and __________ clock is very good.
#34289
A
an；the
B
a； the
C
the；an
D
an；an
— Do you know ______ girl who is standing under ____ tree?— Of course! She is Lucy, my classmates.
#34474
A
the, the
B
a, a
C
a, /
D
/, the
—Do you know the first ladies of China and the USA had________ interview on March 21?—Yes. And it was ________ great success.
#32149
A
an; /
B
the; a
C
an; a
D
the; /
There is______elephant in the zoo._______elephant is from Africa.
#34601
A
a; An
B
an; /
C
an; An
D
an; The