Haveyouevernoticedan的精選

問題詳情：閲讀下列短文，從每題所給的四個選項（A、B、C和D）中，選出最佳選項。Haveyouevernoticedanadvertisementwhichsays“Learnaforeignlanguageinsixweeks,oryourmoneyback!Fromthefirstdayyourpronunciationwillbeexce...