问题
选择题
_____ the story is short and there are no new words in it, it is difficult to understand. [ ]
A. Because
B. Although
C. Since
D. While
答案
答案:B
_____ the story is short and there are no new words in it, it is difficult to understand. [ ]
A. Because
B. Although
C. Since
D. While
答案:B