选择正确的be动词填空is,am,are1,he----working quietly2,you----sitting on the chair3,falling behind -----annpying4,i-----having a good day5what-----they doing?

连系动词be（am,is,are)的用法怎么用 例如 用连系动词be（am,is.are)正确形式填空.（ ）Ronaldo a Brazilian?--Yes,he( ).You and I( )students.He and I ( )teachers.要详细分析成分 用法 be动词am.is.are的问题 用be动词适当形式填空（am,is,are） 选择正确的be动词填空is,am,are1,he----working quietly2,you----sitting on the chair3,falling behind -----annpying4,i-----having a good day5what-----they doing? 请根据句意选择动词be的适当形式（am,is,are）填空Do you ____ ____ ____（认识这个男孩）,Peter? 语法专练用be动词(am,is,are）的适当形式填空 请选择正确的单词（are am is)填空What grade ___you in be动词（am、is、are）的用法规则 be动词用法与例句AM IS ARE的例句 be动词复数有哪些?am is are的 用am,is,are选择适合的词填空 be动词有那些is,am,are am is are是be动词吗? Everyone in the room [] watching TV A.is B.are C.am D.beToday is Tuesday .Yesterday [be ] Monday.选择正确形式填空 The monkeys ____ very clever用be动词（am、is、are）填空 be后面是加动词的ing形式吗?be动词{am,is,are}后面 英语语法be动词问题选择正确的答案填空：1.This postcard () great!(is,are)Yes,().(it is,they are)2.These stamps () beautiful!(is,are)Yes,().(it is,they)3.How big () they?(is,are)4.How long () it?(is,are)5.() a map of China,(It's,They'r 用正确的be动词（am ,is ,are ,was,were）填空the students___free today.they____going to play in the park this afternoon.his mother___ill yesterday.she___better now.where___you last night?