______ your mother?She's slim with dark hair 填写特殊疑问词

______ your mother?She's slim with dark hair 填写特殊疑问词
______ your mother?She's slim with dark hair 填写特殊疑问词

______ your mother?She's slim with dark hair 填写特殊疑问词
What's

what is

How's

用How is What是提问工作的，不正确