No. 1 Many countries in Africa possess ------- natural resources such as diamonds, which has caused domestic conflicts. (A) value (B) valuable (C) values (D) valuing No. 2 To speak ------- a customer service representative, please press 1. (A) out (B) with (C) up (D) for No. 3 The hotel owner is thinking of ------- the business because of his age. (A) fold (B) folds (C) folding (D) folded No. 4 Some people say Mr. Carlton's company focuses on promoting the ------- of shareholders too much. (A) interesting (B) interests (C) interestingly (D) interested No. 5 If you wish ------- to Mr. Wilson, please make an appointment through his assistant in that room. (A) speak (B) to speak (C) speaking (D) has spoken No. 6 A group of ------- played an important role on the experiment. (A) professional (B) professionals (C) professionally (D) professor No. 7 Three ----- ten people voted against the bill. (A) by (B) of (C) out of (D) about No. 8 The database is going to be down ------- maintenance purpose at midnight. (A) against (B) under (C) for (D) with No. 9 Ms. Fedelar called her assistant before she got on the plane to confirm the ------- status of the project. (A) current (B) favorite (C) potential (D) busy No. 10 Everyone in the office gave Timothy a ----- to prepare for Jennifer's farewell party. (A) clap (B) ring (C) hand (D) foot