求翻译几句句子~急

1. Military training in summer benefits students a lot .
2. His plan is proved to be feasible.
3. To our amazement ,he even left without saying a goodbye.
4. We should take actions to solve the current economic crisis.
5. In fact, the decisions we made involve luck.

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1 Summer training students benefit greatly 。
2 He put forward the plan was proved to be feasible 。
3 To our surprise, he should have left without saying good-bye 。
4 We should take actions to resolve the present economic crisis 。
5 Actually the choices we make contains a chance 。