精选优质文档-倾情为你奉上习题（一）1. They dont know _their parents are.A that B what C why D which2. Please tell me _what last year.A. where does your sister work B where did your sister workC where your sister works D where your sister worked3. She asked me if I knew _.A. whose pen is it B. whose pen it was C. whose pen it is D. whose pen was it4. You must remember _.A. what your mother said B. what did your mother sayC. your mother said what D. what has your
