You could develop a study plan that works with your daily routine so that your brain knows that it’s time to pay attention.
B. Had dried; it says 'before the rain STARTED', indicating past tense.
D. Spoke; also past tense.
A. Has written; 'needS, not needED.
The answer is: dubbed.
The verb to dub means to give an unofficial or casual name or nickname to something or someone. As a consequence, the Warner family denominated Agate to the island they found in the middle of the river. The reason for the name is that they saw exquisite banded ornamental stones there, called agates.