John went to the shop. John bought a cake. John took it to Bill's house. John and Bill ate the cake.
It's not grammatically wrong, but it's clunky. We just use pronouns to sound 'normal' in English:
John went to the shop. He bought a cake. He took it to Bill's house. They ate the cake.
In Japanese instead of changing a noun (John) to a pronoun (he) you just don't say the subject if it hasn't changed:
John went to the shop, bought a cake and took it to Bill's house. They ate the cake.
Which, as you can see, is something that works in English at times too.
John went to the shop. John bought a cake. John took it to Bill's house. John and Bill ate the cake.
It's not grammatically wrong, but it's clunky. We just use pronouns to sound 'normal' in English:
John went to the shop. He bought a cake. He took it to Bill's house. They ate the cake.
In Japanese instead of changing a noun (John) to a pronoun (he) you just don't say the subject if it hasn't changed:
John went to the shop, bought a cake and took it to Bill's house. They ate the cake.
Which, as you can see, is something that works in English at times too.