1. 此句无错啊，难道是Where首字母大写的错？改正：Could you tell me where the post office is ?解释：此题的could只表示语气的委婉，不表示过去时，所以宾语从句的时态还是一般现在时。2. 改正：Please tell me how many students there are in your class now.解释：宾语从句用陈述句序，所以把are there改成there are.
1.Could you tell me where the post office is ？没有错误,除了那个where开头要小写2Please tell me how many studen are there in your class now.studen拼错了，应该是students，正确的是Please tell me how ma
