take courses 加is还是are

What courses are uesful for one is job The children take many courses. -What courses are you going to take next semester if you wan 记得说理由-What courses are you going to take next semester if yo 英语翻译问题 How many courses are you going to take this semester. HUMAN BEIINGS加ARE 还是IS people后面加is还是are Chinese food后面加is还是are 英语分数后加IS 还是ARE their homework后面加is还是are people,cattle,police加 is 还是are? human后面加is还是are?