Identify the tense of the following sentences.
1. Mary threw the trash yesterday
2. Dan and Jimmy are collecting bottles for their project.
3. I have served this company for 16 years.
4. Bella strikes a pose for the magazine.
5. The children patiently waited for their turn to play the seesaw.
2. Present continuous
3. Present perfect
4. Simple present
5. Simple past [answer.2.content]