The request that---------- ( 我借的书还回图书馆)by next Friday

题目

The request that---------- ( 我借的书还回图书馆)by next Friday
the books that i borrowed be returned to the library
为什么是 be returned to这里不是该表示将来、被动吗?

答案

the books that i borrowed (should ) be returned to the library.这是中间省略了一个should .should 后面接动词原形.能理解吗?The request that----the books that i borrowed (should ) be returned to the libra...