Даю 30 баллов за 2 легких задания.

Ex.4. Complete the text with the correct forms of the verbs from the box.

2) are transmitted   5) turn off

3) be patented   6) were invented

4) required    7) are converted

Ex.5. Choose and circle the correct relative pronouns.

1) which    4) which

2) where    5) whose

3) that    6) who