根据句意及汉语提示，填入适当单词完成下列句子。 
（1）There are many trees and ____(灌木从)in the garden.
（2）There are some ____ (抢劫者)in the building.
（3）People have different ____(能力).
（4）It's ____  (必要的)to give them clean water if you want them to be healthy.
（5）How ____ (可怕的) the traffic was!

伴随着生理发育，我们的心理也会不断发生变化，出现矛盾和困惑，导致我们出现矛盾心理的变化有（    ）

①自我意识不断增强           ②认知能力得到发展

③情感世界愈加丰富           ④说话声音发生变化