Talking in a very low voice is （）. A: whistling B: hushing C: whispering D: grumbling

The sentence “He heard them crying and laughing, whispering and chattering all the time.” uses both oxymoron and onomatopoeia.

Which one is at the heart of the Tower of London?（ ） A: the central dome B: the Whispering Gallery C: the White Tower D: Tower Green