I think his Japanese has improved quite a bit, hasn't it?

I am busy with work during the daytime.

His death is a great regret for me.

That plan is contrary to our basic principle.

She held the baby to her breast.

He put his hand on his chest and swore.

On a hot summer day, a cold Ramune is the best.

I had severe heartburn last night because I ate too much pizza.

Sōo is my best friend.

She has a large breast.