急！三句汉译英！

I can't find my watch./My watch is lost.
When we heard the news,we felt surprised.
I am disappointed about what you have done.

a,我的手表不见了A , my wrist watch has been missing

b,当听到这事时，我们感到惊讶
B,While hearing this thing, we feel surprised

c,我对你所做的感到失望
C , I feel disappointed to what your composes

a: i lost my watch
b: i was surprised when we heard this.
c: i have disappointed of what you have done

A.I can not find my watch.另一翻译为(I found that my watch was disappeared)
B.We felt surprised when we heard this ting.
C.I felt disappointed about what you did.