they were having an important meeting改为否定句

they were having an important meeting改为否定句 They are having an English party改为否定句 They are having an meeting They were my friends 改为否定句 they are having lunch now.改为否定句 They were students ten yeas ago.改为否定句 they were on the farm last saturday.改为否定句 they were busy yesterday evening.改为否定句 They were in the park yesterday改为否定句 改为否定句：We were having a PE class at four yesterday afternoon. 1.They will do something important when they grow up(改为否定句 THEY WERE HERE否定句