Answer: 1. forecasts, 2. occupancy, 3. deteriorating, 4. declaring, 5. spectacular
Explanation: This passage on friendship statistics needs subject-verb agreement as well as the word that fits its surrounding number or contrast, not just a same-meaning synonym. Blank 1: forecasts — The plural noun before 'are right' must agree with the plural verb 'are', naming the government predictions about future households. Blank 2: occupancy — The noun after 'single' names the type of household being predicted, meaning one resident living alone. Blank 3: deteriorating — The present participle after 'is already' describes the situation getting worse over time, matching the passage's opening 'depressing, even apocalyptic' tone. Blank 4: declaring — The present participle after 'some are' pairs with 'a crisis' to describe taking a firm public stance, matching the contrast with 'others are saying exactly the opposite'. Blank 5: spectacular — The adjective before 'rise of 64 percent' describes a large, striking statistical increase in the number of friends reported.