---Do you think it’s very hot today? ---Yes. But I think it’ll be much _______ tomorrow.
—What class are you in? —I’m in ____, ____.
—____ your sister know Tom? —No, she ____.
—Hi, Lucy. Your skirt is very nice. —____
The story happened three years ago.
Trees are very important to our environment. They can stop wind from blowing the earth away.