I have _____ finished my homework. What about you? –I finished it ______

Linda, with her parents，_______ the Wolf Hill, and they will be back this afternoon.

Why not go to see the dolphin show with me?——Because I_________ it.

Some Math problems in this book aredifficult for the studentswork out.

7. There are over 300 teachers in our school,_________ of them are women teachers.