The teacher with the students_______ discussing the films_______ the subjects are science fictions.
To make it more convenient for people to visit Taiwan, several _____air services fromthe mainland have come into use.
一You don’t go to that supermarket quite often, do you? —No, I only go there ______because it’s too far away from my house.
The girl arranged to have piano lessons at the training center with her sister ______ she would stay for an hour.
Dave nearly ran into a block when walking down the street with his mind ______ on the word puzzle.
______ is the kindness of the nurse that the patient can never be _______ to her.