请帮忙回答一下该问题。

At that moment, they had no choice to jump into the pit（坑), as the countyside was so bare.（光秃秃的，赤裸的，无遮蔽的）There was a great splash(飞溅声), and very soon all was____.

A noisy B still C silent D calm

选哪个是最佳的呢？

C silent 寂静的; 无声的 强调的是原来是有声变无声 而且一般是非正常的变化，象地震过后的 静等。

1) calm 指天气、海洋的“风平浪静”，还可指人的心情“平静”、态度“安详”,“沉着镇定”;指自然“无风无浪的”。例如:

He remained calm.

After the storm the sea was calm again.

The sea was very calm. 海面很平静。

The doctor did what he could to make the girl calm. 医生尽力让那女孩平静下来。

2) quiet 侧重指由于无骚扰而产生的“安静的”、“宁静的”;“无动静，无声响”，或心里没有烦恼、焦虑;用于自然环境时，指没有干扰活动、没有喧闹声的寂静状态。例如:

Everything was quiet.

Keep quiet.

Ask them to be quiet. 让他们保持安静。

They lived a quiet life in the countryside.他们在乡村过着宁静的生活。

3)silent用于事物时,侧重没有声响;有时用于指人时,强调少言寡语。例如:

That's a silent film.

Why do you keep silent.?

You'd better be silent about what's happened. 对已经发生的事，你最好保持沉默。

The children went out， and the room was silent. 孩子们都出去了，房子变得寂静无声。

4)still侧重于"不动"、"静止"时,与calm, quiet, silent不能替换;侧重于"无声"时,可与quiet替换。例如:

Please keep still while I take a photo of you.

How still(quiet)everything is!

All sounds are still. 万籁俱寂。

The Swede stood quite still, except that his lips moved slightly. 那个瑞典人纹丝不动地站着，只有嘴唇在微微动着。

B

At that moment, they had no choice but to jump into the pit（坑), as the countyside was so bare.（光秃秃的，赤裸的，无遮蔽的）There was a great splash(飞溅声), and very soon all was____.

D clam有指“水面平静”的意思