we must keep quiet at the library错误在那里

问题描述:

we must keep quiet at the library
错误在那里

in嘛

at改为in
keep最好改为be

in the library

at改为in,在图书馆用in不用at,这是习惯,要熟记

在图书馆用 in the library,而不是at.
意为:在图书馆我们必须保持安静.

at改成in
应该是这样的吧

we must keep quiet in the library