请你将下列国家与其对应的首都匹配，并完成句子。
1. China a. London
2. the U.S. b. Canberra
3. the U.K. c. Washington, D.C.
4. Australia d. Beijing
5. Canada e. Ottawa
6. _______ is the capital city of _______.
7. _______ is the capital city of _______.
8. _______ is the capital city of _______.
9. _______ is the capital city of _______.
10. _______ is the capital city of _______.
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