Question

my+mother+usually+什么+two+lessons+in+the+morning

Answer 1

填 has
My mother usually has two lessons in the morning.

我妈妈早上常常有两节课。

Answer 2

根据句子意思缺少谓语动词，主语是第三人称单数，所以填has。
即

My mother usually has two lessons in the morning.