Ifyouwatchtheskyf的精選

問題詳情：根據短文內容，從A、B、C、D四個選項中選出一個能填入相應空格內的最佳*。Ifyouwatchtheskyforaboutanhourafterthesungoesdown,youmayseesome“movingstars”.Butthey’renotrealstars.They’reman-madesatell...