Read the sentence. coins used in the islamic world few pictures of people until the twentieth century. what is the past perfect tense of the verb “contain”? have contained had contained contained will have contained

closer examination, however, finds the mcdonald's kind of job highly uneducational in several ways. far from providing opportunities for entrepreneurship (the lemonade stand) or self- discipline, self-supervision, and self-scheduling (the paper route), most teen jobs these days are highly structured — what social scientists call “highly routinized.”  

true, you still have to have the gumption to get yourself over to the hamburger stand, but once you don the prescribed uniform, your task is spelled out in minute detail.  

you have to tell us what you're talking about or it's impossible to answer.