Question

sort the words according to the meanings of their shared roots. cent spectator century spectacles centigrade spectacular look hundred

Explanation:

The root "spect -" means look, and words like spectator, spectacles, spectacular belong to this group. The root "cent -" means hundred, and words cent, century, centigrade fall into this category.

Answer:

look: spectator, spectacles, spectacular
hundred: cent, century, centigrade