Complete the sentences with the words and phrases in the box. Use each vocabulary item in their grammatically correct form.

development   *   enthusiastic   *   foresee   *   have second thoughts   *   as far as I remember   *   dependent on   *   environmentally friendly   *   aviation   *   compensate for   *   be on track  
A few months ago I heard that an airline, (1) it was EasyJet, was moving to the next stage of (2) of an electric engine. This means that the company (3) to have electric planes on at least some of its routes. First I was (4) to hear that we will be able to travel on (5) , lower-noise aircraft. We can also (6) a future that is not exclusively (7) jet fuel, which means that the planes would also be cheaper to operate. However, now I (8) . Who would fly in a battery power aircraft? I myself would be scared to do so. Even if electric aircraft have their advantages, this new development would only (9) the projected growth in (10) .