I. Choose the word that has the underlined part pronounced different from the others. 1. A. ionic B. vacuum C.add D. facsimile 2. A. whiten B. fiber C. zipper D. conveyor 3. A. follow B. powder C. show D. borrow 4. A. remove B. wrote C.mold D. cocoa 5. A. wood B. thousand C. procedure D. hair dryer