1. put the verbs in brackets in the right form. robbert ( scan) the book , when we entered the room. who (invent) the telephone? boys already ( email) the virus to his computer. mark (translste) the story before he (give) the book to kidnapper.

Robbert was scanning the book , when we entered the room
Who invented the telephone?
Boys have already emailed the virus to his computer.
Mark had translated the story before he gave the book to kidnapper.