Isn't it also "A dog is going"?
Yes it is. Marked me wrong for this :/
Why not "a dog walks" ?
Dog goes didnt work :(
OMG I️ got it wrong cause I️ forgot the A
This is a male dog right?
Yes, female dog will be כלבה (kalba)
The letter "ו" will make an o sound like here but can also make oo sound like in the word גוּר goor (puppy). If there are no dots, all depends on context and experience