1. Were you at the Zoo last Sunday? – Yes, I ...
a) were c) was
b) am d) did
2. My aunt ... in Lviv last winter.
a) go c) is
b) were d) was
3. Her grandparents ... at home yesterday.
a) did c) was
b) were d) wasn’t
4. Where ... your elder sister last summer holidays?
a) was c) were
b) went d) is
5. My classmates ... play volleyball yesterday.
a) weren’t c) did
b) didn’t d) wasn’t
6. Last Saturday she ... her mum about the house.
a) didn’t c) was
b) help d) helped
7. My best friend ... me his favourite book last month.
a) gived c) was
b) gives d) gave
2. Проблемы по охране окружающей среды приобрели глобальное значение.
3. Этот завод не выбрасывает вредный газ и сажу после установки нового мощного фильтра.
4. Сегодня у многих промышленных предприятий есть собственные очистительные установки для защиты окружающей среды.