-上句:A horse is big .An elephant is big .(改为选择疑问句)

问题描述:

-上句:A horse is big .An elephant is big .(改为选择疑问句)
— is bigger,an elephant —— a horse?横线上填什么
上句:My father usually has his breakfast at seven .(对划线部分提问)
—— ——your father ——his breakfast?横线上填什么

Which...or...?
When does...have...?