Mrs. Le explained that the burning of coal led to air pollution., , Nam said he had to present his paper on endangered animals the following week., , Linda asked the speaker if human activities have an impact on the environment., , Nam asked Mai what environmental projects her school was working on., , Tom said to Nam that he would read more articles before writing the essay., .

Task 1

بواسطة
طباعة
تضمين

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

)
استعادة الحفظ التلقائي: ؟