Select the most appropriate meaning of the underlined idiom in the following sentence.

I really don't want to pour cold water on your theory but it cannot be applied to real life situations.

Select the most appropriate synonym of the underlined word in the given sentence.

In most organizations, some  predators  take over the meek ones.

Sentences of a paragraph are given below in jumbled order. Arrange the sentences in the correct order to form a meaningful and coherent paragraph.

A. Nostalgia helps us maintain a positive psychological status when counteracting the negative impact of difficult situations.

B. Nostalgia is a sentimental longing for one's past.

C. The adaptive functions of nostalgia are many, with one effect being pain relief.

D. It is a self-conscious, perhaps bittersweet but predominantly positive social emotion.

Select the option that expresses the given sentence in passive voice.

They are hitting the ball.