parallelism elements

maerchen

                                                                                                                                                                                                曼哈顿的chapter 5 problem set上有一题：
原题是The consultant is looking for a cafe where there are comfortable chairs and that provides free internet access.
答案是：The consultant is looking for a cafe that has comfortable chairs and that provides free internet access.
但是曼哈顿前面又说 The signal words do not have to be the same word. For example: There are many people who  speak English but whose parents do not. 我的问题是：如果没有必要一样的话，这个句子是不是应该没错？
                                       
                               
                       
               

westminster

where 和 that 在从句中的成分不一样。