there is [no ]apple in the box.为什么用no而不用no　 an呢?具体解释一下there

there is [no ]apple in the box.为什么用no而不用no　 an呢?具体解释一下there There is no apple in the box与There are no apples in the box有 There is（） apple in the box.A.no B.not 选哪个? There is no time ( )the box now there is no time ( )opening the box. If the weather is fine ,we will go there;if not,no.为什么用no而不用 厨房里没有食物there is no food in the kichen为什么不用there isnt food There Is ____ egg in the box.A.No B.not a C.not.为什么? There is no apple or orange in the bag 改为肯定句there is __ appl it is no wonder 中wonder 既然是名词性的,为什么还用it 而不用there呢? there is no royal road to learning.请问这句为什么用介词加动名词而不用动词不定式呢 There is an apple in the box.变复数句