mr grandfather is reading a newspaper 就划线部分提问.划线部分：reading a newspaper

mr grandfather is reading a newspaper 就划线部分提问.划线部分：reading a newspaper
mr grandfather is reading a newspaper 就划线部分提问.划线部分：reading a newspaper

mr grandfather is reading a newspaper 就划线部分提问.划线部分：reading a newspaper
What is your grandfather doing?

What is Mr grandfather doing？