The novel was so interesting that he readit _____ in a single day

Do you think the English class _______ –No, we all like it.

I regret _____ you John has been fired. — I can hardly believe my ears. He is such a fine worker.[ ]

________ the girl is only nine, she cooks meals every day.

Why do you choose to work in an international travel agency—Well，you know，English is my ________.So it is my best choice.