Will you give my tennis racker back to me tomorrow?
= Will you return my tennis racker to me tomorrow?
= Will you give back my tennis racker to me tomorrow?
= Will you return me my tennis racker tomorrow?
注：give sth back to sb = return sth to sb = give back sth to sb = return sb sth 把某物归还给某人；
还可以把Will you改写成Are you going to.