The World Cup will ________ in South Africa this year．Do you know how many football teams will be ________?
A.happen; taking partB.hold; taking part inC.play; taking part inD.take place; joining in it在线课程D
解析：
表示体育赛事举行用be held或take place；第二个空应填taking part或joining in(it), take part in后应有宾语。