He ___ on the grass, looking at the clouds in the sky.

Anyone who has spent time with children         the difference in the way boys and girls       similar situations.

In our childhood,we were often __________by Grandma to pay attention to our table manners.

Nowadays many girl students eagerly took the course to ______ themselves for a career in nursing.

Computers have been made ______ clever that they can ______ problems like humans _______.