Ther are old bikes(改为单数形势的句子)

there are old bikes under the tree（改为单数句) There are old bikes under the tree.改为单数句 ther are orange butterflies改为单数句 They are old ladies.(改为单数句子)怎么做? These are old chairs(改为单数句子） there are three bikes near the tree改为单数形式 There are old bikes under the tee.改成单数形式 用所给词的适当形式填空 Does yo They are old jeeps. (改为单数句) are these old coats 改为单数句 they are old computers改为单数形式 Those are old boxes. (改为单数) Those are some old family photos on the wall.改为单数句子