19. It’s dangerous to have the fire _______ at home all night long.
| A．to burn | B．burn | C．burned | D．Burning |
—Peter was half an hour late for the first class yesterday.
—________？He lives within 10 minutes’ walk!
| A．How come | B．What for |
| C．So what | D．Why not |
—Hello，I’m calling to complain about one of your sales staff.
—Oh，________
| A．you must be kidding! | B．what a shock! |
| C．why not? | D．what happened? |
—Go for a trip after the exam，OK?
—________.I love getting close to nature to relax.
| A．I couldn’t agree more | B．I’m afraid not |
| C．I believe not | D．I don’t think so |
—Would you mind if I turned off the air conditioner?
—________ It makes no difference to me.
| A．Never mind. | B．Sure，go ahead. |
| C．Not at all. | D．Why not? |
—Do you think it was the supermoon that caused the earthquake on March 11,2011 in Japan?
—________.It hasn’t proven itself true by scientists.
| A．Not in the least | B．Don’t mention it |
| C．You can say that again | D．I expect so |