用所给单词的适当形式完成句子。

1. It has been more than twenty-five years since they got ______ (marry).

2. I was ______ (embarrass) for her when she slipped and fell.

3. The local    ___    (authority) decided to build a bridge over the river.

4. They should    __     (farmer) the land instead of letting it lie waste.

5. The enemy had   __      (flee) from the village when we arrived.