听对话或独白，根据对话或独白的内容，从下面各题所给的A、B、C三个选项中选择最佳选项。每段对话或独白你将听两遍。
What will the boy give his mother on her birthday？
A. A cake.         B. A card.        C. A clock.
Who is going to cook for Mum？
A. Jack.          B. Mary.          C. Dad.