Question

1.Is this house -----older of the two. 2.-------earth moves around -------sun.

Answer 1

1.Is this house 【the 】older of the two. （两者中较……，用the +比较级）
2.【The 】earth moves around 【the 】sun. （两个the 都用在表示 独一无二的事物前。）

追问

Would you like --------rice or ------ bread for your breakfast ?

追答

两个空都不用填。
答句是：I‘d like rice for breakfast.
或者 I ‘d like bread for breakfast.