When I wanted to express my thanks to him，words _____ me. I just held his hands firmly and choked.

It is required by the authorities of school that students should be treated ______ by their teachers but how can a teacher respect them when the students show no respect for him?[ ]

Bob usually gets to school ________ bike . But sometimes he ______ to school.

end Miriam felt it was out of _____ question forher to visit China without going to see the terracotta warriors, so I helpedher arrange _____ tour to Xi’an

We should________the lights when we leave our classroom because we mustsave electricity.[ ]