用who造句，谢谢

who造句 People who cannot speak can talk by using signs.不会说话的人可以用手势沟通。Who do you think you are?你以为你是谁？She looked wretched and forlorn, despairing of the arrival of a friend who had promised to meet her.她看上去又可怜又孤独，对于答应来看她的朋友的到来已不...