He has a habit of keeping his arms ______ when talking to others，which I personally think _____impolite to his audience．
A．to be folded; it B．being folded; X C．folded; it D．folded; X
He has a habit of keeping his arms ______ when talking to others，which I personally think _____impolite to his audience．
A．to be folded; it B．being folded; X C．folded; it D．folded; X
D