1 , Students usually ask the teacher a lot of interesting puestions ( who )
2, Lan inexcited that she wins the first in the competion ( excited)
3, I was very happy that I met my old friends again ( happy)
4, What ' s the matter with you ? you look ( happily) ................ today .
5, we must ( open) ..........the lion' s cage .it is contrary to zoo regulations.