The composition is that my mother-in-law covers me with a quilt at night and accidentally sees her face is very old.

I'll give you a good start, just write some and follow the rest.

Life is like running water, and many moments of life may be ignored by us. Now I know how to cherish the moment of life.

In the evening, I finished my homework and went to bed. Later, I heard footsteps coming in. It turned out that my mother-in-law came in to help me cover the quilt. Taking advantage of the moonlight outside, I saw my mother-in-law's old face, and at that time I was filled with emotion. My mother-in-law tucked me in and went out. I tossed and turned in bed. At dusk, the past came to my eyes.

When I do my homework, my mother-in-law always comes over to send me milk and fruit for a while and cares about me everywhere.

By analogy, the rest can be unfolded by itself.