A cool rain was falling, _____ with snow, causing heavy traffic．
| A．mixing | B．mixed | C．to mix | D．having mixed |
—I’ll come to see you this afternoon. Shall I bring something to read? —OK. ___.
| A．You’re welcome | B．By no means | C．So much the better | D．Take your time |
—Hello, may I have an appointment with the headmaster? —_____.
| A．Sorry, he is busy at the moment | B．No, you can’t |
| C．Certainly, Wait a minute, please | D．Let me see |
—How would you like your coffee? —____.
| A．It’s well done | B．Very nice. Thank you |
| C．One cup. That’s enough | D．The stronger, the better |
—Can I help you, sir? —______.
| A．Yes, you can help me | B．No, I don’t need any help |
| C．Of course, if you like | D．No, thanks, I’m being served |
—Is the experiment easy? —____. I’ll just do my bit.
| A．I think so | B．Certainly | C．Not a little | D．Anything but |