—I find difficult to learn English grammar. —You can do more English exercises.
If it _______ tomorrow, we will go to the park.
—May I use your dictionary, Lily?—Sure, _______.
My mother is ill. I _______ stay at home to take care of her.
—Must I take the medicine every day? —No, you _______.
He eats _______ food, so he is _______ fat.