In the following passage some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each number.

Comprehension:
English Ivy (1) ___ its poor reputation as a nuisance by its unparalleled ability to provide shade. By seamlessly covering the exterior of a building, it works as a natural (2) ______, blocking the sun and decreasing air conditioning costs. This means big savings for both building tenants and homeowners (3) ________. And it can happen quickly, too. Under the proper conditions, established English Ivy can grow to cover (4) ________ of roughly 500 square feet per year. Given that most homes have a roof measuring roughly 2000 square feet, ivy-friendly homeowners can rest assured that their roofs will be (5) ________ covered in about four years.