用所给单词的适当形式填空
1. I can't understand you. Please explain it to me ________(clear)
2. Haiku is _________(simple) what is happening in this place, at this moment.
3. Do you know how to _________(pronunciation) this word?
4. He felt very ________(sleep) after the long walk.
5. To write poems needs ________ (imagine).
