Correct the mistakes 1when was invented the radio. 2the book was wrote pushkin. 3a lot of people will invited to the party. 4where the key was found. 5 last year a very iportan lettety will be lost in the post office 6all his pens were borrow. 7 this car will be not stolen. it protected

1 When was the radio invented?
2 The book was written by Pushkin.
3 A lot of people will be invited to the party.
4 Where was the key found?
5 Last year a very important letter was lost in the post office
6 All his pens were borrowed.
7 This car will not be stolen. It is protected.