Soluzione del esercizio 2 di Performer B2 - Student's Book

Future Perfect

• "By 2050, the world's population will have reached 9.9 billion people."
• Justification: This sentence describes an action (reaching 9.9 billion people) that will be completed before a specified time in the future (by 2050).

Future Continuous

• "Cities will be living in a cleaner, healthier environment."
• Justification: This sentence uses the future continuous tense to indicate an ongoing action (living) at a specific future time (by the time mentioned, in a cleaner, healthier environment).