单项选择题

Muchs he ________ he hs good commnd of English, he sometimes feels it hrd to findnppropriM

uchs he ________ he hs good commnd of English, he sometimes feels it hrd to findnpproprite version for some Chinese idioms.nnounces B.declres C.clims D.confirmsA.announcesB.declaresC.claimsD.confirms