Listen,Tom ______(sing)in the next room.用所给词Listen,Tom ______(sing)in the next room.用所给词的适当形式填空求思路

问题描述:

Listen,Tom ______(sing)in the next room.用所给词
Listen,Tom ______(sing)in the next room.
用所给词的适当形式填空
求思路

is singing