With the development of science, more new technologytothe field of IT.

（题文）The long-lasting war, filled with blood and deaths, ended in people’s sadness, _______no result.

I thought I was going to fail the exam, but I passed ______ .[ ]

We ______ in the hallways. It’s the school rule.

When _____ help, one often says “Thank you” or “It’s kind of you”[ ]