-Shall we go for a picnic this weekend?-- Well . We’ll have to see if the weather

问题补充：

---- Shall we go for a picnic this weekend?

---- Well, . We’ll have to see if the weather is fine.

A. it all depends

B. it depends on

C. OK

D. I don’t know

答案：

(答案→)A. it all depends

B. it depends on

C. OK

D. I don’t know

解析：本题考查交际用语。It all depends那还得看情况了。根据句意：我们将不得不看天气是否好。故选A。