根據(jù)英語翻譯下面短語的意思并完成句子。
1. by chance _____
2. by accident _____
3. by mistake _____
4. by luck_____
5. by design _____
6. by good fortune_____
7. by necessity_____
8. I met an old friend of mine _____ in the street.
我在街上偶然碰到了老朋友.
9. — How did you find your lost bike?
你如何找到的你丟失的自行車?
— _____.
湊巧找到的.
10. I had no trouble passing on the driving test in the end ___.
由于運氣好最后我通過了駕照考試.
11. He has finished his task ahead of time______.
由于進行了周密的籌劃,他提前完成了任務.
12. The war will break out between the United Sates and Iran_____ in time.
伊美之間遲早會不可避免地爆發(fā)戰(zhàn)爭.
