We must send more satellites into space(改为被动语态) More satellites ___ ___ ___ into space

问题描述:

We must send more satellites into space(改为被动语态) More satellites ___ ___ ___ into space
怎么填?
为什么?

will be sent
将来时态的被动语态
will+be+done形式
希望能够帮到楼主