定语从句(1)1. Weshouldlearnfromthosearealwaysreadytohelpothers.A.whoB.whomC.they2.Mr.HerpinisoneoftheforeignexpertswhoinChina.A.worksB.isworkingC.areworking3.TomistheonlyoneofthestudentswhotoShanghai.A.havegoneB.havebeenC.hasbeen4.I,yourgoodfriend,willtrymybesttohelpyouout.A.whoisB.whoamC.thatis5.Theoldmanhastwosons,arelawyers.A.bothofthemB.bothofwhoC.bothofwhom6.Heisamanofgreatknowledge,muchcanbelearned.D.thatD.hasbeenworkingD.hadgoneD.whichamD.bothofthey15D.