问题
选择题
The math question is like a piece of cake. He spent five minutes in working it out.
A．hard
B．easy
C．confusing
D．difficult
答案
答案：B
题目分析：句意：这个数学问题很容易,他花了5分钟就做出来了. a piece of cake就是“小事一桩”的意思，形容轻而易举的事情。结合句意，故选B