He was badly hurt last night. That is _____ he didn’t come to school.

 One concern people have now is ______ printing passengers’ names and ID numbers on tickets will make it harder to protect their private information.

_____________ made Jim most excited was, I think, ____________ he had passed all the exams.

______sounded unimaginable to everyone present was______ she had managed to finish   the task in a week.

(2010·江苏)—I prefer shutting myself in and listening to music all day on Sundays.—That's ________ I don't agree.You should have a more active life.