根据句意及汉语提示，写出各单词的正确形式，每空填一词。
Nothing can prevent us from ____________ (实现) “The China Dream”.
Doctor Wang became a crazy mountain climber in his __________ (四十).
The speech seemed endless and there appeared many ______ (厌烦) looks on the audience’s faces.
“Don’t be nervous when facing a hard choice. Just stay ____________ (放松) .” Mother always encouraged me.