there is always plenty to read in the waiting room
问题描述:
there is always plenty to read in the waiting room
为什么这里用is不用are
答
plenty
[英]['plentɪ][美][ˈplɛnti]
n.丰富,大量; 充足,充裕,充分;
adv.相当地,充分地; (口)十分,充分;
adj.足够的,很多的,充裕的; 很多的;
复数:plenties
这里的 plenty 是名词单数,当然用is.