be set of 和be set in有什么区别

be set of 和be set in有什么区别 be set in和be set on 的区别? be set be made up of和set up的区别 be set in 和exist是同义词吗 be set to be set down be set 请全点! Here _(be) a set of keys.如题.Here _(be) a set of keys.、 in the set of Many representatives were in favor of his proposal that a special committee____to investigate the incident.A.were set up B.was set up C.be set up D.set up be set to 什么意思? 大侠们 be set to be set up for doing There___（be）a set of keys on the table. 选哪个,请给出原因,A.were set up B.was set up C.be set up D.set upMany representatives were in favor of his proposerl that a special committee________to investigate the incident.还有请具体说下B和C的区别.什么时候用was,什么时 My heart will be set in stone forever. My heart will be set in stone forever.