21.—You couldn’t have chosen any gift better for me.
—
A. Oh, don’t you like it. B. That’s all right.
C. I’m glad you like it so much. D. You’ve a gift for music, don’t you?
22. Paper produced every year is the world's production of vehicles.
A. the three times weight of B. three times the weight of
C. as three times heavy as D. three times as heavier as
