We don’t know if it .If it ,we won’t go out for a walk.
Tom is ______ of the six boys.
——Must I take the medicine every day?—No, you _______.
—I looked for you in the office, but I could’t find you. —Oh, I in the library
—What’s your son’s ? —He prefers drawing.
—Is she Jane? — ________. A. Yes, I am B. Yes, he is C. No, she isn't