13.　　 (give) the right kind of training，these teenage soccer players may one day grow into international stars.

解析：如果训练得当，这些小足球运动员有朝一日可能成为国际级球星。主语players与give是被动关系，用过去分词作条件状语，相当于if they are given。

答案：Given

12.　　 (tire) and short of breath，Andy and Ruby were the first to reach the top of Mount Tai.

解析：安迪和卢比第一批到达泰山之巅，筋疲力尽且呼吸困难。形容词作状语，tired为形容词化的过去分词。

答案：Tired

11.When we visited my old family home，memory came　　(flood) back.

解析：现在分词短语作方式状语。

答案：flooding

10.　　(encourage) by the advances in technology，many farmers have set up wind farms on their land.

解析：受科技进步的鼓舞，许多农民已经在他们的土地上建造了风力发电厂。根据句意，encourage和farmers是被动关系，因此用过去分词。

答案：Encouraged

9.　　(complete) the project in time，the staff were working at weekends.

解析：由后半句句意“全体工作人员周末都在工作”可知，前半句表示“为了及时完成那个项目”，故用动词不定式作目的状语。

答案：To complete

8.David threatened 　　 (report)his neighbor to the police if the damages were not paid.

解析：戴维威胁说，他邻居如果不赔偿损失，他就要报案。threaten后接不定式作宾语且report和David是主动关系。

答案：to report

7.Bill suggested 　　(hold) a meeting on what to do for the Shanghai Expo during the vacation.

解析：比尔建议开会就假期为上海世博会做些什么进行讨论。suggest后接动名词作宾语。

答案：holding

6.With the government's aid，those 　　 (affect) by the earthquake have moved to the new settlements.

解析：在政府的援助下，那些受地震影响的人们已经搬到新的定居点。用过去分词affected作后置定语修饰those。

答案：affected

5.A small plane crashed into a hillside five miles east of the city，　　(kill) all four people on board.

解析：一架小型飞机坠毁于城市以东5公里处的山坡上，机上四人全部死亡。表主动，用现在分词作结果状语。

答案：killing

4.　　(bite) twice，the postman refused to deliver our letters unless we chained our dog.

解析：由于被咬过两次，除非我们把狗拴起来，否则那邮递员不愿意送信给我们。the postman与bite是被动关系，用过去分词作状语，表被动。

答案：Bitten