---Do you mind my taking this seat? ---______.
| A．No, of course not. | B．No, you can’t take it. |
| C．Yes, take it please | D．Yes, sit down please |
——Must I take the medicine every day?—No, you _______.
| A．mustn’t | B．don’t |
| C．don’t have to | D．can’t |
—I looked for you in the office, but I could’t find you.
—Oh, I in the library
| A．read | B．reading | C．is reading | D．was reading |
—What’s your son’s ? —He prefers drawing.
| A．business | B．hobby | C．director | D．Body |
— Doctor, is my son serious?
— No, _______. He only has a cold.
A. something serious
B. serious nothing
C. nothing serious
—May I watch TV now?
—Of course. ______.
A．Never mind. B．Go ahead C．Hurry up