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