他轻轻地抱着婴儿。

He held the baby ___gently in his arms.

现在我长大了，对母亲说话非常温柔。

Now I am older and I speak to my mother very ___gently.

老师向困惑的学生温柔地解释了这个概念。

The teacher explained the concept ___gently to the confused student.