剑桥英语启蒙-unit2-good-morning

duck找鸭子：你能在下列单词中找到duck吗？•applebirdbag•cockduckfrog•helloPetergood•antduckhi•duckbooknightgoodmorning早上好goodnight晚安elephantfrogantbirdcockduckelephantfrogduckbirdcockantelephantfrog•frogmorningbirdcockduckfrog•helloelephantgood•anteveningnight•duckafternoonhi