she cannot be reading in the library now.这个be 有什么用 做什么成分

she cannot be reading in the library now.这个be 有什么用 做什么成分 Both of them word in the library中in the library做什么成分 were (be)you just now I ( be ) in the library( 用所给适当形式填空 ) she was lying in the bed reading ,reading 作什么成分 they are bound to be defeated in the match.这里不定时做什么成分啊? 在She used to be a Chinese teacher中be做什么成分 be in the 与be in use有什么区别 cannot be resolved什么意识 —( be)you in the library just now?No.l was in the classroom. () she reading in the library?---No,she()选择题 She is supposed to be reading at home.be reading 表示什么?怎么翻译 his aunt ______ be here now,she has just gone to the library