How long ago do you think bubble gum was invented? 翻译一下,做英文回答.请大家帮我用英文回答一下。

How long ago did you start school? how long ago did you start school?怎么回答? do you remember how long ago ___to China?a.have you traveled b.you have traveled c.did you traeledd.you traveled how long do you exercise every how long do you go to school how long do you read every night? how long do you love me how long do you live in japan how long do you read every night? how long do you think.怎么翻译 How long ago do you think bubble gum was invented? 翻译一下,做英文回答.请大家帮我用英文回答一下。 How long do you do your homework every day how long sport do you do?这句话对吗?为什么? how long sport do you do?这句话对吗?为什么? How long are you staying 与How long do you stay的区别? (How long ago) is it that you last saw her?为啥不可以用HOW LONG BEFORE?区别? How long did you Spend (do) your homeHow long did you Spend (do) your homework long long ago的中文歌词是什么?Tell me the talesThat to me were so dear,Long,long ago,Long,long ago;Sing me the songsI delighted to hear,Long,long ago,Long ago.Now you have come,All my grief is removed,Let me forgetJust as long as I do,Let me