The language lab should always be kept clean.(改为一般疑问句)
The language lab should always be kept clean.(改为一般疑问句)
I often do speaking in the language lab.改为一般疑问句
we should keep the water clean(改为一般疑问句)
the boy should be more careful改为一般疑问句
we should keep the river clean.(一般疑问句)
The classroom should be kept clean and tidy,____ ____?补全附加问句
把被动语态改为一般疑问句:The man should be allowed to take a rest later.
we should be allowed to put the rubbish here(改为一般疑问句)
We clean the classroom on Friday afternoon.改为一般疑问句
Mike can clean the classroom.(改为一般疑问句)
we have to clean the classroom改为一般疑问句
they will clean up the city parks.改为一般疑问句