Some people ________cruel experiments on animals ________science.
writing the article, Mrs. Curie even forgot her dinner.
While riding in the street, _____________.
—Can you give me the right answer? -─Sorry I____________ .Would you repeat the question?
—How do you find that Beatles’CD? —Wonderful. It’s well worth ____________.
—How do you find that Beatles’CD?
—Wonderful. It’s well worth ____________.
She is not __________ to pass the examination as she doesn’t work hard.