题干
There is ________"u" and ________"h" in the word "hour".
A：a/a
B：an/an
C：a/an
D：an/a
答案(点此获取答案解析）
C
There is ________"u" and ________"h" in the word "hour".
A：a/a
B：an/an
C：a/an
D：an/a
