根据句意及汉语提示完成句子。

1. English is __________ (极其重要的) for international business.

2. English is now used by about a ___________ (四分之一) of  the world's population.

3. England is an ____________ (工业化的) country.

4.The decision was of great ____________ (重要) to the future  of the business.

5. In ____________ (近来) years there have been many changes.

6. My son said he wanted to learn a third language — __________ (阿拉伯语).