2.6 A healthy ecosystem includes green vegetation which keeps the air we _____ clean. (A) breath (B)
2.8 Conrad Railroad _____ all of the Safety Commission’s recommendations by the end of the month. (A
2.9 More than two hundred volunteers _____ whales from coastal viewpoints last year. (A) count (B) c
4.2 The natural hot springs are an ______ enjoyed by thousands of tourists every year. (A) Attractio
4.3 Continuing education is crucial for keeping abreast of the changes in technology and staying ___
4.7 She worked ______ for six hours, until the conference call came through. (A) interrupted (B) int
1.2 My brother started working in the pizza business after ______ graduated from college. (A) himsel
2.1 He ______ all his money in bad stocks, and now he is flat broke. (A) investment (B) investing (C
2.4 An independent poll showersthat Randall Straus is currently the most popular politician in the s
2.6 The marine biologist ______ the long term memory of small whales. (A) to investigate (B) had bee
3.1 One way to reduce ______ in the banking industry would be to eliminate government involvement. (