牛津英语4B专项练习(四)1.SallyandLilyarereadingapicture-book.(对划线部分提问)areSallyandLily?2.Samcandrawalittletree.(改成现在进行时)Samalittletreenow.3.Myteacherishappy.(改为否定句,保持意思不变)Myteacherisn’t.4.It’srough.(对划线部分提问)doesit?5.ThisisTim’sball.(对划线部分提问)ballisthis?6.Thispenisblunt.(改为否定句,保持意思不变)Thispen.7.Marycandrawapanda.(改为否定句)Marydrawapanda.8.Johnismygoodfriend.(对划线部分提问)goodfriend.9.Thereisapeachinthebag.(对划线部分提问)Howmanythereinthebag?10.Thereissomejuiceinthebottle.(改为一般疑问句)therejuiceinthebottle?