问题
选择题
There is ________ "u" and ________"s" in the word "bus". [ ]
A. an; an
B. a; an
C. an; a
D. a; a
答案
答案：B
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There is ________ "u" and ________"s" in the word "bus". [ ]
A. an; an
B. a; an
C. an; a
D. a; a
答案：B