(you must cross the strees )怎么改为否定句
(you must cross the strees )怎么改为否定句
把You must cross the street at the zebra crossing.改成否定句
you must wait for the green light .改为否定句
You must eat in the classroom 改为否定句
you must pick the flowers改为否定句
You must pick the sunflowers.(改为否定句)
you must wait for the bus.(改为否定句) The teacher goes to the sh
You must listen to the teacher in the class.改为否定句
You must pick the flower(否定句)
You must wait.(怎么改否定句)
把句子改为祈使句you can't cross the street at the moment.you must be
We must eat or drink in the classroom.改为否定句怎么改