Mom,where's my player?It's in___white bag on your desk.

Mom,where's my player?It's in___white bag on your desk.
Mom,where's my player?It's in___white bag on your desk.

Mom,where's my player?It's in___white bag on your desk.
the

the
这里是特指，因为有on your desk

the
这里是特指，强调是在你书桌上的白色包
祝你进步，有不会的可以再问我哦