Believe it or not,Jack has been to Beijing.为什么要用has been to,不用was to

RIPLEYS BELIEVE IT OR NOT MUSEUM怎么样 用believe it or not造句 believe it or not 的意思 Believe it or not meant to be 翻译英语：believe it or not Believe it or not I like you not love 句首为什么用believe it or not 而不是believing it or not believe it or not,he came home last night 信不信由你 BELIEVE IT OR NOT怎么样 BELIEVE IT OR NOT翻译成中文的意思 Believe it or not!She likes to read s_______ stories 英语翻译请用believe it or not回答 Believe it or not 什么意思啊?如上 用not believe it or )组成一句话标点是“？” Believe it or not ?请帮翻译一下? 翻译for your information only,believe it or not 用believe it or not造句 3句以上 WHAT'S MORE BELIEVE IT OR NOT IN OTHER WORDS