they keep the streets clean by picking up rubbish _________d
they keep the streets clean by picking up rubbish _________d
They keep the streets clean by picking up rubbish.(划线部分在by p
they clean keep streets the.连词成句
We should pick up the i_____ to keep the streets clean.
请问he always picking up some rubbish on the ground.和he always
They pick up rubbish.
Stree sweepers will clean up the streets after a typhoon goe
We can help to Clean up the city streets in our free time (对
They are picking up leaves over there.
I ( ) this kitchen clean by the streets after 8:00pm in this
The students promise that they will keep the classroom clean
picking leaves the up are they 连词成句怎么连?