英语问题___a pear and an orange 这里用these are 还是this is是就近原则吗?

These are an apple and a pear.还是This is an apple and a pear. what colour is your nose and mouth?这里填is还是are?也是就近原则吗? 英语里 是 There is an apple and a pear 还是 There are an apple and be动词的就近原则,请问这两句话对吗?到底是用are还是is? There__ an orange and two apples on the table里,是用is 还是用are? Is this ____ orange?No,it is _____ orange pear.这里应该怎么填?orang A boy and his classmate后面是用单数还是复数,需要就近原则吗? 初中英语就近原则,these is going to be遵照就近原则吗? 英语就近原则?什么时候用?E.X：THERE IS A CAR AND A CATOR :THERE ARE A CAR you and i后面有的be动词是am还是are be动词的使用跟就近原则有关吗 [急]both...and...是就近原则吗? This is an orange and that is a ruler. 这里的and是什么意思?