The sentence - The children were given a doll's house by Mrs. Hay - is written in the passive voice. The correct answer is B.
The active voice would be - Mrs. Hay gave the children a doll's house.
First, what is the title and author of the work to which you refer?
Elizabeth Bishop's poem "Sestina" has two characters: a grandmother and her grandson.
The child is a perceptive boy, because he can sense his grandmother's sadness even when she tries to hide it by making jokes. He has a very active imagination that can be seen in this drawings: he draws a man with "buttons like tears". He feels lonely and distanced from his grandmother and uses this imaginative drawing as a way to escape it.
Sometimes. If the sentence is two independent clauses then they would need either a period or a semicolon. A comma would be used if you had an independent and dependent clause.