1)Type the correct form of the verb in brackets for each sentence. The Tunguska Mystery 1. The huge fireball ...on 30 June, 1908. (explode) 2. Fourty thousand trees in the region of the river Tunguska ... . (burn) 3. A lot of animals ... . (kill) 4. Shock waves from the explosion ... in different placesdetect) 5. People ... the glowing silver clouds in the night sky. (watch) 6. Leonid Kulik ... Tunguska to investigate that event. (visit) 2)Highlight all the words (pronouns and adverbs) that should be changed in the Reported Speech. Do not highlight the verbs (that should be changed in tenses Ex. He says "I visited my grandma two days ago" He says he had visited his grandma two days before. 1-He said "this is my favourite story". 2-He said "I won't be able to help you tomorrow". 3-He said "I'm going to do this task now". 4-He said "Todey we have a lot of work to do". 5-He said "I was rather happy few yers ago".