请你将下列国家与其对应的首都匹配,并完成句子。 1. Chinaa. London 2. the U.S.b. Canberra 3. the U.K.c. Washington, D.C. 4. Australiad. 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 _______.