Where is the post office? It'sXXXX XXXXthe science museum. 2

Where is the post office? It'sXXXX XXXXthe science museum. 2.Where is the bookstoe? 填空在5年纪作业
麻烦2.3题的都说下。第10页有的话麻烦也说下。看上无份似有分！！！ 错了，是6年纪的英语作业本。