根据句意，在答题卡标有题号的横线上，写出括号内所给单词的适当形式。
Whenever Bill thinks of his pet’s ____________ ( die ), he feels very sad.
The scientist died in his ____________(forty). What a pity! He should be taken good care of.
Among the four drama series, actors in Special Holiday perform ____________ (badly).
Some patients waited ___________(hope)for their turns to see the famous doctor..