Viet Nam held the Opening ceremony of the 31st Sea Games successfully.

A. The Opening ceremony of the 31st Sea Games is held successfully in Viet Nam.

B. The 31st Sea Games was held the Opening ceremony successfully in Viet Nam.

C. The Opening ceremony of the 31st Sea Games was held successfully in Viet Nam.

D. The 31st Sea Games is held the Opening ceremony successfully in Viet Nam.

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