He takes photos.(look)- He took photos.
She sings a beautiful song for the old.(listen)- She listens to a beautiful song for the old.
The students lie in the sun,(at this time)- The students are lying in the sun at this time.
The teacher has a lesson.(it is nine o’clock) - It is nine o'clock.The teacher is having a lesson.
不明白的再问哟,请及时采纳,多谢 !