smoothly discussion whole tidy cancelling natural

（1）After a heated

discussion

discussion

，the headmasters from different schools reached an agreement.
（2）Sorry，hamburgers in our shop have been sold out.Do you mind

cancelling

cancelling

your order？
（3）Yesterday，Sandy gave an excellent show and the

whole

whole

class were excited.
（4）The machine was repaired last Saturday.Now it is running

smoothly

smoothly

.
（5）Millie is interested in Biology and she often records the

natural

natural

beauty in the park.