suffer an injury during ______exercise, or if _______ pain or discomfort makes you think an injury isdeveloping, stop right away and call me

Beijing is a big city, isn’t it––Yes. In fact, it’s one of ____ cities in the world.

下列古今意义相同的一组是（ ）

Which of the following is right?[ ]

I’ve got three days’ holiday, New Year’s Day _____ [ ]