The work______________(finish)tomorrow morning.The books must______________(give)back on time.
问题描述：
The work______________(finish)tomorrow morning.The books must______________(give)back on time.
I think the telephone_____________(invent) in 1876.
Tea may____________(inveny) by Shen Nong.
用所给单词的适当形式填空
答
will be finished
be given
was invented
have been invented