5、Good morning. B、Nice to meet you. C、Hello. ()3.你想知道他是谁,应该问:(3分)A、Who is he? B、Who is she? C、Who is my? ()4.你想介绍你的弟弟给John认识,你可以说:(3分)A、Hi, John. B、This is my brother, John. C、 Good morning. ()5.当班上来了新同学,你要表示欢迎时,应该说:(3分)A、Welcome. B、What' s your name?