it is hard for only one girl to keep the classroom to clean every day 为什么用to clean

问题描述:

it is hard for only one girl to keep the classroom to clean every day 为什么用to clean
还有keep的用法

楼主的这个句子是错误的,正确的应该是:
it is hard for only one girl to keep the classroom clean every day.
keep +宾语 +形容词作宾补