I couldn't swim（ when） I（ was） ten years old.
（How）（ was） maria's birthday party What about going there by bus？（变为同义句）______ _______go there by bus？A pig can't swim.（用I think改写句子）I_______think a pig ______swim.这两道怎么做？你这- -咋做HOU ABOUT go there by bus？I don't think a pigcan swim