Whose teachers are these They are ours改成单数形式

Whose teachers are these They are ours改成单数形式 Whose are these?----They are______ books.A.teacher B.teachers' C.teacher's Jane and Mary are sisters.T--------- parents are teachers 用whose组合出适当的句子（定语从句）Are those the students?Their teachers give them exams every day.________________________________________?I can't imagine how hard they must work. Some of us are teachers,but some aren't.We____ ___ teachers. Teachers,_____ work is rather hard,are being better paid than beforeA.who B.that C.which D.whose 初一英语单复数转换1.These are English books.2.Is this a bus.3.I am a new student.4.Those aren't oyr apples5.Whose dress is this6.Are they old women.7.He has a small knife.8.The cap is red.9.The men in black are teachers.10.The gray desk is m our teachers are ( ).(friend) whose books are Whose books are they? Whose are those books? 英语翻译whose 【 】 【 】 are [ whose pants are those? whose monkeys are they? Whose turtles are they? Whose keys are these? whose sunglass are these? whose phone are you