To play basketball and to go swimming ___ useful for character-training. A．was B．is C．are D．were
2023-02-01 18:00:29 154次 2010届三轮回扣语法专项训练（主谓语一致性） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
To play basketball and to go swimming ___
useful for character-training.
本题链接：
