EX 3 Complete the sentences using the Present Perfect Continuous form of the verbs in brackets. e.g. She has been trying to raise money for the zoo for months. (try) 1. Acid rain natural habitats for years. (destroy) 2. We hard to raise awareness of environmental problems. (work) 3. It for two hours and it won't stop! (rain) 4. I at the zoo for a year already! (volunteer) 5. They very hard for their exams. (study) 6. She money to environmental organisations for five years. (donate)

Решение:

• 1. Acid rain has been destroying natural habitats for years.
• 2. We have been working hard to raise awareness of environmental problems.
• 3. It has been raining for two hours and it won't stop!
• 4. I have been volunteering at the zoo for a year already!
• 5. They have been studying very hard for their exams.
• 6. She has been donating money to environmental organisations for five years.

Объяснение: Для выполнения этого упражнения мы использовали структуру Present Perfect Continuous: 'have/has been + глагол с окончанием -ing'. Эта форма используется для описания действий, которые начались в прошлом и продолжаются до настоящего момента, или недавно закончились, но имеют видимый результат.