Take up means to use or put into practice in the context of the dialogue
In Dover Beach by Mathew Arnold, the speaker describes the sea at night, how it looks and sounds as it crashes against the moonlit coast. The speaker calls the reader to come and observe with him such a marvelous view. In line one he states "The sea is calm tonight.", while in line five he emphasizes "... <span>out in the tranquil bay. ".
Therefore, your best answer is calm/tranquil.</span>
What? Never watched it look it up? Sorry it isn’t much help
