Answer:
ans 6. (clean) are being cleaned
ans 7. ( finish,not ) wouldn't be finished
ans 8. ( turn on ) (I don't understand the question as I think the correct ) sentence would be....why was the tv turned on .no one was watching it
ans 9. ( remodel,not ) wasn't remodeled
ans 10. ( must leave ) must be leaved / must be left
ans 11. ( test ) was, being tested
ans 12. ( sell ) ( I think in this you don't need to fill anything as the sentence is correct itself ) the last umbrella was sold last night
ans 13. (not allow ) would be not allowed
hope this are correct :)
The narrator is confused or uncertain about how much time has elapsed
probaly A i think sorry if wrong
Answer:
Hudson river have a different climate and is not inhabitable by zebra mussels was said by scientist in the 90s. It might be because of increasing water pollution in the Hudson river as their are channels from the cities which meet the river.