来自郭光立的问题
【Climbingisoneof________,Ithink．填什么?A．themostdifficultactivityB．themostdifficultactivities为何选B?我比较级那里ok,只是复数这...哎...】
Climbingisoneof________,Ithink．填什么?
A．themostdifficultactivity
B．themostdifficultactivities
为何选B?
我比较级那里ok,只是复数这...哎...
1回答
2020-06-15 21:48