He drew a straight line using a T-square.

She is learning the grammar of the present progressive form.

He remembered the proverb 'even a pig will climb a tree if flattered', and complimented his boss.

After he solved the problem, he said, 'It's like seeing the true form of a ghost or a withered silver grass,' meaning things are not as scary as they seem.

This shape is a parallelogram.

This shape is a parallelogram.

He is interested in geometrical shapes.

He is conducting research on historical kana usage.

He often thinks about problems from a humanitarian perspective.

His company is facing the risk of a hostile takeover.