there are two boxes of apples on the desk改成单数句

there are two boxes of apples on the desk改成单数句 there is \are two boxes of chalk on the desk? there ____ two boxes of chalk on the desk. There are some apples on the desk.改为单数 there are some apples on the desk.(改为单数句)答案是什么 There are two boxes on the table改为否定句 There are some English books on the desk.改成单数句 I have two pencile boxes on the desk改成同义句 there are three apples on the desk? there are some apples on the chair 改为单数句 there are some books on the desk改为单数句 there are two pieces of bread on the plate 此句子改成单数形式