两个英语填空见下-Are u coming by bus?-I _not.Buses are always crowed
两个英语填空见下 -Are u coming by bus?-I _not.Buses are always crowed during holidays.答案是may 而不是can 为什么? -Hi,Tom.Any new idea where Jane is?_She__in the classroom.I saw her there just now.答案是must be 而不是shall be 为什么?