There is an apple in the box.变复数句

There is an apple in the box.变复数句 There is an apple in the box.改成否定句 "There is an apple in the box"的同义句,还有个句子,见问题补充 there is an apple on the desk.怎样变复数?地点用不用变复数? this is knife in the box（变复数句 there is an apple tree in our garden （变复数）there ()()()()in o there is a pen in my pencil-box.there is an apple on the tab Is there in tree apple an the连词成句 ( )Look!There _______ an apple and two pears in the box.A.is there is a box on the table.ln the box,there is an apple.the There is an apple in the basket. there is an apple in the tree .