It didn’t ______ to me that the naughty boys should have_____ to prove what we discussed the day before.

A．occur; set out

B．happen; set about

C．strike; set off

D．come up; set up

支托具有以下作用，除了

A．支持作用

B．做间接固位体

C．固位作用

D．防止食物嵌塞

E．恢复咬合接触