he newly-discovered star was named _____ a Chinese astronomer ________his contributions to astronomy

—Do we have to wear our school uniforms tomorrow?— I think so. We _____ the coming-of-age ceremony in the afternoon.[ ]

They live 20 kilometres _________ the school.

My English teacher gave us a suggestion yesterday, _____is often the case, ______ our monitor organize a debate after class.

Thank you very much for showing me how to use the computer.— ________.