根据句意及汉语提示写出下列单词。

1. His mother tongue is German, but he speaks Italian like a         （本国人）.

2. It is ____________（无用） to argue with him, he is too stubborn.

3. All these goods will be ___________(运输) abroad by ship.

4. I am _____________(有决心) to finish the work ahead of time.

5. Without _________ (电)，modern life would be very difficult.

6. Don’t always stay indoors. You’d better go _________（户外） for fun.

7. He was one of the__________（裁判员）at the boxing match.

8. We haven’t seen each other for a long time, but I _________(认出) him at once.

9. We were excited to see the rapids where the water seemed to ________(沸腾).

10. You can depend on him, for he is a _________(可靠) man.