问题
选择题
I ate _____ sandwich while I was waiting for _____ 20:08 train.[ ]
A. the, a
B. the, the
C. a, the
D. a, a
答案
答案:C
I ate _____ sandwich while I was waiting for _____ 20:08 train.[ ]
A. the, a
B. the, the
C. a, the
D. a, a
答案:C