The education system rather than the teachers （ ） for the overburden on the students.
（A）are to answer
（B）is to answer
（C）are answered
（D）is answered
When and where to build the new school （ ） yet.
（A）has not been decided
（B）has not decided
（C）are not decided
（D）have not been decided
A group of Italian soldiers （ ） quickly towards their position.
（A）were advancing
（B）were advanced
（C）was advancing
（D）advancing
