【同义句】1.The waiters are serving the customers busily in the restaurant.The waiters are ______ ______ the customers busily in the restaurant.2.You don't need to hand in your work today ,but you must hand it in tomorrow.You don't ______ ______hand in your work today ,but you ______ _____ hand it in tomorrow.

【同义句】1.The waiters are serving the customers busily in the restaurant.
The waiters are ______ ______ the customers busily in the restaurant.
2.You don't need to hand in your work today ,but you must hand it in tomorrow.
You don't ______ ______hand in your work today ,but you ______ _____ hand it in tomorrow.