英语选择1-3

英语选择1-3
16.Iron has an important role to play in the _____working of the human body and is vital (至关 要的) to healthy living.A) efficient B) favorite C) primary D) current 5.He might as well have picked a family _____out of the telephone book and stayed with them.A) at random B) at a time C) after all D) in detail A) waken B) disturb C) complain D) publish 6.Music,for both of us,is a part of life we treasure,and Michael has found his records and tapes a constant _____of happiness during the long hours of inactivity forced upon him.A) source B) illustration C) a10.It can be argued,for example,that teaching can be _____more effectively if teacher and student take their appropriate (合适的) roles.A) disciplined B) handled C) accomplished D) proposed ddition D) package