根据句意，在答题卡对应题号的横线上，写出括号内所给单词的适当形式。
【小题1】Wuxi, a green city, is a ______(please) place for people to live in.
【小题2】He Jiong became famous as a host in China in his __________ (twenty).
【小题3】At the 19^th CPC National Congress ,the Party celebrated our country’s ___________(achieve) and set a course for the future.
【小题4】Mrs. Wang is the ____________ (strict) teacher we have met.