Our bikes are under the trees a moment 15秒以内这句话有哪错了

Our bikes are under the trees a moment 15秒以内这句话有哪错了 There are old bikes under the tree.改为单数句 there are old bikes under the tree（改为单数句) Our SCV are under attack! 对括号部分提问,there are (some bikes) under the tree. There are (some bikes) under the tree.对括号部分提问 There are (ten)bikes under the big tree(括号词部分提问) these bikes under building C are theirs 对划线部分提问划线部分是theirs There are （some bikes）under the tree.对括号部分提问 我们的自行车不一样.用英语怎么说?Look!Our bikes are not________. This bike are mine.That one is my sister's.Our bikes are d____.求这个空填什么单词. This bike are mine.That one is my sister's.Our bikes are d____.求这个空填什么单词. there的单数形式在there be 句形里there are什么什么改单数 there are some old bikes under the trees.改单数 In our class,bikes and buses are most popular means of t_____.根据句意以及词首字母完成单词. how about____(ride)our bikes there They are () bikes .They are theirs 用括号内所给单词的适当形式填空. -Are these ( )(they) bikes? -No,( )(they) aren't here.They are ( )(our). our ,we ,are ,ubder,lunch ,trees,some 连词成句our,we,are,under,lunch trees some