Once____,a plan should be carried out.A makeB makingC to makeD made

Once____,a plan should be carried out.A makeB makingC to makeD made 请问这是啥意思:ya hu shou gao jl jlng hua tu plan shou&l shou ; men The project is designed in this way and once____,nothing can be done to change it.A.startsB.startingC.startedD.having startedonce started是固定用法吗? make plan还是make a plan C, well plan D. a best plan There is a plan to his plan. make a plan中文 make a plan for Make a plan to there is a dinosaur shou in the museum we need to walk alove just to shou that a 这两个英语短语,哪个正确?A.''shou great in doing sth''B.''shou great at doing sth'' a plan a day out 求shou shou门照片. plan a day out ( )sbmake a plan( )the day to plan a table 和 to table a plan plan