No. 1 This study group consists of a couple of private ------- and some business owners. (A) invested (B) investor (C) investors (D) investing No. 2 Mike found ------- difficult to focus on his presentation after his manager started taking notes in front of him. (A) it (B) that (C) what (D) those No. 3 It was shocking news that Silverstone Corporation was fined for committing ------- and substantial violations of federal law. (A) serious (B) seriousness (C) seriously (D) serious-minded No. 4 Finding qualified members for this project could be ------- difficult. (A) extreme (B) extremer (C) extremely (D) extremity No. 5 The letter ------- that the annual convention in Las Vegas successfully took place. (A) acknowledgement (B) acknowledgeable (C) acknowledge (D) acknowledged No. 6 All of the students in that class were invited to an ------- dinner by Professor Wilson. (A) informant (B) informal (C) intelligible (D) irresistible No. 7 To speak ------- a customer service representative, please press 1. (A) out (B) with (C) up (D) for No. 8 The labor union went on ------- in front of the headquarters in Toronto to demand better wages. (A) trial (B) demonstration (C) hand (D) strike No. 9 All of the staff were reminded of the seminar beginning ------- at 2 p.m. in the auditorium. (A) promptly (B) prompt (C) prompted (D) prompter No. 10 Please direct all winter holiday inquiries ------- the personnel department. (A) until (B) to (C) as (D) with