语法词汇练习 语法大全 语法详解 英语听力 
It’s ______ good idea to visit our old teachers on ______ Teachers’ Day.
#34479
A
a; the
B
a; /
C
/; /
D
/; the
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There is______ “u” and ______ “s” in the word “use”.
#33736
A
a; a
B
an;a
C
an; an
D
a; an
It’s an________.
#33856
A
key
B
pen
C
quilt
D
English book
--Is this  _______ pencil case?  --No, it’s ______ eraser．
#34063
A
a; /
B
an; a
C
a; an
D
an; /
There is _______"u" and ______"s" in the word "use"
#34053
A
an; an
B
a; an
C
a; a
D
an; a
Betty is from America, she is______ American girl.
#34684
A
a
B
an
C
the
D
/