... comforts Answer keys: 1b, 2c, 3a, 4b, 5b, 6c, 7c, 8c, 9b, 10 c, 11 b, 12 c, 13 c, 14 a, 15 b. 3. Consolidation: - have students ask and answer the questions in the exercises in pairs - ask and answer ... Liêu answers in front of class and others give comments. - give correct answers. - have students ask and answer the questions and answers in pairs class and others give comments - copy in the answer ... telephone. Alexander Graham Bell - discuss and answer - cop in the book - He invented. The telephone in 18 7 6. New words: - emigrate (v): di cư - deaf-mute (n): người vừa câm, điếc - experiment...