初三课本上几个简单的被动语态题
问题描述：
初三课本上几个简单的被动语态题
1.Our teeth _____ (should brush)every day.
2.That puzzle ____ (can not solve)by him,because it's too hard.
3.Nuclaer weapons _____ (must give)up.
以上是课本上的几个小题.我被动语态学的不是很好.尤其是有情态动词的这种,请英语大虾指点一下.
还有一个题,我不知道是不是被动语态的.
The meeting _____ (hold) next week.
这个题也请一起指导一下吧~~
答
should be brushed
can not be solved
must be given
to be held/is going to be held