67 A aim at 68 D varies 69 C in control 70 B possess 71 D vast 72 A but 73 B essential 74 C in touch with 75 A acquire 76 B profession 77 D only 78 A with 79 C encourage 80 C interests 81 A broaden 82 A amid 83 D sake 84 B make 85 A field 86 C meaningful