| 1. | The central heating is on a time-switch . 集中供热设备是定时开关的。 |
| 2. | I am on familiar terms with my bank manager . 我与银行经理交情很好。 |
| 3. | The three villages are on the same line . 这三个村庄在同一条直线上。 |
| 4. | I wish you and i could be on better terms . 但愿你我会相处得好一点。 |
| 5. | Are you sure this deal is on the level ? 你确信这笔交易诚实无欺吗? |
| 6. | He is on a knife-edge about his exam results . 他对考试成绩十分担心。 |
| 7. | The train for chicago is on track 9 . 开往芝加哥的列车停靠在第9道。 |
| 8. | Look in the tv guide to see what is on . 看看电视节目表上有什么节目? |
| 9. | The strike has been on now for six weeks . 罢工至今已进行六个星期了。 |