I. Find the word which has a different sound in the underlined part. 1. A. rough               B. enough                              C. laugh                         D. though 2. A. design              B. basic                                 C. physical                     D. preserve 3. A. showed            B. learned  C. lived                          D. discriminated 4. A. rice                  B. carnival C. companion                D. invade Lam giup em