-- Whether the sports meet will be put off has not been decided.-- Yes. .A. It all dependB

问题补充：

-- Whether the sports meet will be put off has not been decided.

-- Yes. .

A. It all depend

B. It all depends

C. It is all depended

D. It is all depending

答案：

A. It all depend

(答案→)B. It all depends

C. It is all depended

D. It is all depending

解析：情景交际。A. It all depend 谓语动词数不对 B.要看情况而定 C. 它是有所依赖 D.它是有所不同的。句意：运动会是否会延期还没有决定呢。故选B。