－prlfessor, do you have something at this moment?
－No,thanks.I'llcall you if there is any.
| A．typing | B．typed | C．to type | D．to be typed |
—Would 13：00 be convenient?
—________， but I'll have to check my schedule for sure.
| A．It won't do | B．It should be fine |
| C．That's the deal | D．It's up to you |
—Tom often plays the record very loud at midnight in his apartment.
—________！
| A．Just your luck | B．Better not |
| C．It can't he helped | D．That's too much |
—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 |