Youwouldbeirritatedifyouwatchedthemailonyourdeskeveryday.A.puttingupB.tobeputupC.topileupD.pileup说watch感官动词省略to,但文件（themail）不是被堆（pile）吗?

Question

You would be irritated if you watched the mail ___ on your desk every day.A.putting up B.to be put up C.to pile up D.pile up 说watch感官动词省略to,但文件（the mail）不是被堆（pile）吗?

Answer 1

和同时感官动词的hear联系一下.hear sb do something 没问题对吧.同样的watch 也是这样的.
pile up在牛津高阶词典上的解释是这样的：to become lager in quantity or amount.也accumulate是同义词.如：Work always piles up at the end of the year.