下列各句中加点的词语使用恰当的一句是
She was so angry at _______ hewas doing ______ she walked out, and closed the door heavily behind her.
____ there is no law stating how you may dress, not all fashions are respectable.
I don’t suppose he is ______ to come to our help when we get into trouble. [ ]
―Will you go to the Great Wall with us―If John wants to go, _______