问题
选择题
Look at the word"busy", there is _____"s" and _____"u" in it.
[ ]
A. a, a
B. an, an
C. a, an
D. an, a
答案
答案:D
Look at the word"busy", there is _____"s" and _____"u" in it.
[ ]
A. a, a
B. an, an
C. a, an
D. an, a
答案:D