问题
选择题
— What's _____ most useful invention in the 20th century?
— _____ computer, I think. [ ]
A. the, A
B. a, A
C. the, The
D. /, The
答案
答案:C
— What's _____ most useful invention in the 20th century?
— _____ computer, I think. [ ]
A. the, A
B. a, A
C. the, The
D. /, The
答案:C