1 Study the meanings of the new vocabulary items.
| as far as I remember | I think so but my memory could be wrong |
| development | the process of developing something new |
| be on track | make progress, develop as expected |
| enthusiastic | showing a lot of interest and enjoyment |
| environmentally friendly | not harmful to the environment, eco- friendly |
| foresee | predict, anticipate |
| dependent on | requiring something in order to operate |
| have second thoughts | change one’s mind |
| compensate for | make up for |
| aviation | air traffic |
2 Write the word or expression in the box next to their definitions.
| I think so but my memory could be wrong | |
| the process of developing something new | |
| make progress, developing as expected | |
| showing a lot of interest and enjoyment | |
| not harmful to the environment, eco-friendly | |
| predict, anticipate | |
| requiring something in order to operate | |
| change one's mind | |
| make up for | |
| air taffic |
