班级评选优秀团员,小青害怕自己的竞争对手李军同学选票超过自己,有意不给对方投票,即使对方很优秀。小青这样做是的表现。( )
A:逆反心理
B:闭锁心理
C:忌妒心理
D:虚荣心理
Fire is very dangerous. It can ____people. We ____be careful with fire. We mustn't play near fires. We mustn't play with matches. We mustn't ____in the forest. When we see a fire, we must go outside ____,but ____use the lift.