5

1. Mary could use an encyclopedia in 1970.

2. She could send an email in 1970.

3. Mary could use the Internet in 2010.

4. She could read an e-book in 1970.

5.

6

1.

2. Your father could use a dictionary when he was young.

3. People could play online games in 1995.

4. Sam's mother couldn't read e-books in 1980.

5. My grandmother could send letters in 1970.

Verified answer

Ответ:

ex 5.

2) Mary couldn't use an encyclopedia in 1970.

3) Mary couldn't send an email in 1970

4) Mary could use the internet in 2010

5) Mary could read an e-book in 1970.

ex 6.

2) Your father could use a dictionary when he was young.

3) People could play online games in 1995.

4) Sam's mother couldn't read e-books in 1980.

5) My grandfather could send letters in 1970.

Объяснение:

На 5 упражнении нету текста, поэтому точно не знаю, правильно, или нет. Но 6 правильно.