the students are_____at the blackboard.中_____里填什么

the students are_____at the blackboard.中_____里填什么 A blackboard,a clock and a map are ( )the wall(括号里填什么) I'm()on the blackboard()里填write 还是writing 反意疑问句中you clean the blackboard today,这填什么 The blackboard is ( )our classroom填什么介词 There are over fifty students ----the job 中----填什么 please look the blackboard填一介词 The students are looking at the blackboard同义句 --Who ___to clean the blackboard __class?--The students of T 1 on monday morning ,the children are_____at(加不加the?)school. Two _____(five) of the students in our class are boys.1.填什么 Two students are at the _____ to wait for school bus.中间填什么?