完型填空:Let's go to take a walk ( ) to the park.
问题描述:
完型填空:Let's go to take a walk ( ) to the park.
答
a walk in the park
an easy job,or a job that poses no difficulty小菜一碟
=a piece of cake
eg.I aced the math exam,it was like a walk in the park.
如果有几个次选择across是可以的