I have never dined with you, sir; and I see no reason .
| A．how can I know | B．how I ought to know |
| C．why shall I know | D．why I should know |
The reason _______ he didn’t come was _______he was injured.
| A．that, because | B．why, that |
| C．why, because | D．that, that |
My parents _______ have arrived at suppertime but their flight was held up due to the heavy fog.
| A．will | B．can |
| C．must | D．should |
The manager believes prices will not rise by more than _______ four percent.
| A．any other | B．the other |
| C．another | D．other |
—Thank you for joining in our conversation tonight.
—_____.
| A．It’s my duty | B．It’s all right |
| C．It’s my pleasure | D．With pleasure |
He is a difficult person, for he ___________________ about everything.
| A．often complained | B．is always complaining |
| C．complains | D．will complain |