最佳答案:铅笔盒里有一块橡皮.There's a rubber in the pencil-box.否定句:There isn't a rubber in the pen
最佳答案:保证准确率!1.There is a rubber in the pencil case.否定句:There isn't a rubber in the pen
最佳答案:你的句子要发过来,这样才能帮你变成否定和疑问句再做肯定否定回答呀?
最佳答案:My father has a white eraser.Does your father have a white eraser?Yes,he doesNo,
最佳答案:These chairs are beside those tables.Are these chairs beside those tables?Yes,th