It is _______ world of wonders, _______ world where anything can happen.
| A．a；the | B．a；a |
| C．the；a | D．/；/ |
—I've got something weighing on my mind. Could you give me some advice?
—________. Tell me all about it and I'll do what I can.
| A．Don't mention it | B．No way |
| C．No problem | D．Forget it |
—I'm so sorry about last night—it was all my fault.
—________.
| A．Forget it | B．No way |
| C．Go ahead | D．My pleasure |
—Shall I help you with the math problem?
—________.
| A．If you wish | B．With pleasure |
| C．You're welcome | D．That's right |
—Why don't we just leave it until tomorrow?
—________ I'm dead tired today.
| A．Forget it. | B．I couldn't agree more. |
| C．It all depends. | D．Don't mention it. |
—I forgot my mother's birthday!
—________ Better keep it in mind next year.
| A．I'm afraid so. | B．So what? |
| C．You did? | D．No wonder. |