Air and the sun's rays create much distortion, and whatever tends to _____ their influence is useful to the astronomer.
—What are you busy with?—The conference in our city next week.
—Someone might see us.— ?we are not doing anything illegal.
— It is important for you to find appropriate course at college. —I can't agree more.It's decision that affects the whole family.
A good advertisement, people attach positive meanings, can contribute to the sales of a product.
— Can we meet tomorrow afternoon?—Not in the afternoon, I’m afraid.I .