When you rewrite the paragraph, I advise you to leave out ____ is thought unnecessary or misleading.[ ]

A. what

B. that

C. these

D. which

阅读下面诗歌，回答下列小题。

（1）诗的颔联、颈联分别运用了   ▲   和   ▲   表现手法来描写清溪水色之清的？ 

（2）诗的尾联描绘了   ▲   的情境，流露出诗人内心的一种   ▲   的情绪。