4. Correct the mistakes printed in bold. Explain your corrections.
1. Will be waiting.
2. Have been.
3. Is, was.
4. Find.
5. Had been.
6. Requires, discovers, is
7. Used.
8. Pay, go.

ответ: -

Объяснение:

3 задание -

3) changed , 2) used , 3) arrived 4) hide 5) fixed 6) do not leave 7) does not improve 8) invented

4) will be wait 2) has been 3) were 4) finded 5) still been 6) discover(S) 7) using 8) paid

5) 1) when I'm bored 2) he will buy a car 3) lesson will not start 4) she played 5) want to play 6) there were no gadgets 7) she is under load 8) how we will not be bored

P.S Простите что долго , удачи!