精选优质文档-倾情为你奉上根据句后括号内的要求，填入句中所缺的词： 1.I know the answer.(一般疑问句) _ _ know the answer? 2.We can see some birds.(一般疑问句) _ _ see _ birds? 3.There is a computer in my house.(一般疑问句) _ _ a computer in house? 4.There are some flowers on the teachersdesk.(一般疑问句) _ _ _ flowers on the teachersdesk? 5.There are some apples on the tree.(否定式) There _ _ _ apples on the tree. 6.I think he is very old.(否定句) I _ think he _
