按要求感谢句子

We are going to visit Big Ben.（对划线部分提问
                          __________

They will go to visit the Summer Palace.（把主语改为为单数）

They will go to Hangzhou by piane.（对划线部分提问）
                                         _______

Are you going to the park?（做否定回答）

one   the   cities   is   in   of   it   biggest   America.（连词成句）