The city of Nanjing is the Yangtze River and Japan is the east of China.A. in; on B. on;

问题补充：

The city of Nanjing is the Yangtze River and Japan is the east of China.

A. in; on

B. on; to

C. off; to

D. on; in

答案：

A. in; on

(答案→)B. on; to

C. off; to

D. on; in

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