问题
选择题
—Betty, what are you doing now?
—I'm waiting ____________ the bus. It takes me to school every morning. [ ]
A. at
B. for
C. on
D. in
答案
B
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—Betty, what are you doing now?
—I'm waiting ____________ the bus. It takes me to school every morning. [ ]
A. at
B. for
C. on
D. in
B