We need to keep the water clean.(改为一般疑问句) _______we_______to
We need to keep the water clean.(改为一般疑问句) _______we_______to
we should keep the water clean(改为一般疑问句)
we have to clean the classroom改为一般疑问句
I need to clean the bird cage every day.改为一般疑问句 _____you____
we should keep the river clean.(一般疑问句)
we are going to clean the classroom after school 改为否定句 一般疑问句
We clean the classroom on Friday afternoon.改为一般疑问句
We must boil the water.(改为一般疑问句)
The force of air will keep the water in the jar改为一般疑问句
we have to keep the water clean 这句话对吗?不对的话请更正,
what should we do to keep water clean
We should keep the water clean 的汉语意思是?