Do be quiet in the library!

在图书馆务请保持安静。

youdao

You must be quiet in the library.

不得在图书馆内喧哗。

youdao

Be quiet in the library.

在图书馆里保持安静。

youdao

You are expected to be quiet in the library.

在图书馆你应该保持安静。

youdao

What do you have to? --- We have to be quiet in the library.

你们必须做什么？---我们必须在图书馆里保持安静。

youdao

What do you have to? --- We have to be quiet in the library.

你们必须做什么？---我们必须在图书馆里保持安静。

youdao