Be slow to promise and quick to perform. 不轻诺,诺必果。 Lesson 139 and Lesson 140一 用所给词的适当填空(10分)1. - Is that you, John? - Yes, this is John _ (speak).2. John works for the Overseas _ (engineer) Company.3. He wants to know if you are _ (tire).4. Who jumped _ (high), Tom, Bill or Bob.5. A moment _ (late), the rain stopped.6. He can enjoy _ (him) if he is rich.7. Some peopl