31. Hillary Clinton arrived in Beijing yesterday the start of her short visit to China.A

问题补充：

31. Hillary Clinton arrived in Beijing yesterday, the start of her short visit to China.

A. marked

B. having marked

C. marking

D. to mark

答案：

A. marked

B. having marked

(答案→)C. marking

D. to mark

解析：可联系答.案.网客服索取。