According to scientists, our mental abilities begin to______from the age of 27 after reaching the highest level at 22.
| A．differ | B．shrink | C．fail | D．decline |
—What do you think of the concert?
—I really enjoy it. I didn’t expect it was ____ wonderful.
| A．as | B．more | C．most | D．very |
—Tom, you are caught late again.
—Oh, ____.
| A．not at all | B．just my luck |
| C．never mind | D．that’s all right |
—We must thank you for taking the trouble to cook us a meal.
—____.
| A．With pleasure | B．It doesn’t matter |
| C．It was no trouble at all | D．By all means |
—Do you mind if I smoke?
—____
| A．Why not? | B．Yes, help yourself |
| C．Go ahead | D．Yes, but you’d better not |
—So you missed the meeting.
—____. I got there five minutes before it finished.
| A．Not at all | B．Not exactly | C．Not especially | D．Not really |