根据要求完成句子。

1. Tom doesn't know how he can get to the post office. ( 变为简单句)

                                                                             . 

2. Is there a department store near here? Could you tell me? (合并为一句)

                                                                          __  .

3. When will the train arrive? Please tell me. (合并为一句)

                                                                          __.

公民可以通过下列哪些途径行使建议权、监督权？[ ]

①直接向人大代表反映情况

②电话、书信举报

③张贴大字报

④聚众闹事

A．①②

B．①③

C．②④

D．①④