Some boys were talking and laughing ___(noise)when the teacher came in

Were were the boys( )那时 Some boys were seen ————(play)football on the playground yesterday Some boys were talking and laughing ___(noise)when the teacher came in We found some boys in the room.They were playing chess.(合并为一个句子） Some were playing games ander a big tree.Some were singing and dancing.Some boys and girls were runSome were playing games ander a big tree.Some were singing and dancing.Some boys and girls were running up the hill.Others were drawing pictures. we found some boys.they were playing chess.合并为一句合并为一句we () some boys ()()这是运用了什么结构,还有,题干中为什么是were playing,这是什么时态?不是一般过去时直接played么 改为否定句和疑问句.1.I found an interesting book.2.There were some boys in the room. the police were told that some boys were seen_ on the streetA to play B.playing C.to be playing D played. 更正下面句子的错误,每题仅有一处错误 The police were told that some boys were seen play on thestreet Boys,please help__________to some fish. Some boys like to fight and they were used the computer to pretend to fight.请问一下这句话Some boys like to fight and they were used the computer to pretend to fight.嗯,some boys like to fight..我记得是不是有一个语法叫做,like doi some boy were found lying on the grass just now(改为一般疑问句）老师说应该是were some boys found lying on the grass just now可是 在疑问句中some 不是要改为any的吗? the police were told that some boys were seen_ on the street A to play B.playing C.to be playi...the police were told that some boys were seen_ on the streetA to play B.playing C.to be playing D played.我选的B,求详解.百度知道搜出来一个 some students were late some students were late some percentages were rounded There are some boys running in the playground.对some提问,对some boys提问 英语翻译( ) like going shopping,some girls ( ) boys