问题
单项选择题
—Learning a language isn't easy. It takes time.
—I agree. (). There's no shortcut.
A. All roads lead to Rome
B. Rome wasn't built in a day
C. Practice makes perfect
D. Slow but sure wins the race
答案
参考答案：B
解析：
All roads lead to Rome，“条条大路通罗马”。Rome wasn't built in a day“冰冻三尺非一日之寒”。Practice makes perfect，“熟能生巧”。根据句意应该选B。