根据句意和汉语注释，在答题卡对应题号的横线上，写出单词的正确形式。
Zhao Pu, the host has made a ________(decide) to give up his job in CCTV recently.
You ________ (simple) can’t imagine how terrible the earthquake is!
I think the present that your grandfather gave you is _____________ (value) to you.
We Chinese have made great ____________ (achieve) in modern space technology.