The _____ of his clothes indicated tooclearly that he had been playing football

It was some time _____ Tony realized that he had made a serious mistake on that matter.

The number of students in our school _________ 4000 and a number of them _______ good at playing Ping-Pong.

To have a dinner at a restaurant on the Eve of the Spring Festival, you need to reserve the restaurant months before, _____? [ ]

Are these your brothers 一 ________．