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