—what is Jack doing?—He is inviting his f—what is Jack doing?—He is inviting his friends ( )join in his birthday party.A.to B.不填 C.for

—what is Jack doing?—He is inviting his f—what is Jack doing?—He is inviting his friends ( )join in his birthday party.A.to B.不填 C.for What is Jack? jack is doing a s什么 what is she doing? What is he doing? What is he doing what is Green doing what is it doing what is it doing What is he doing? what is amy doing? what is you doing? What is Jack?（改同义句）_____does Jack _____? What is she doing? What she is doing? 曲别? is,mother,your,doing,what what is the man doing what is she doing in what is the kangaroo doing?