In 1856, the government was taking steps to create a public-school system. Progressing, the legislature passed the first public-school law in 1860. This encouraged other districts that were building schools in other parts of the territory. The University of New Mexico was built for the increasing population of Albuquerque in 1889. Established schools became more numerous in some areas by the early 1900s. Which underlined word is a past participle?

Progressing

building

Established

passed

i feel like it is actually b.

ok i am here, i brought some cookies and some movies. do you use blu-ray cuz thats all i brought. oh, and my friend wwill be here shortly, he is going to bring some pizza too.

i decided to stay late in the laboratory to continue my experiment with the lightbulb. at midnight, thomas edison opened the door and walked in with his head held high.

1. he leaned on the wall and observed me carefully.

2. his harsh scrutiny made me self-conscious of my skills in the lab.

3. perhaps it was just me, but the air in the laboratory began to thicken as i found myself having difficulty to breathe.

4. i turned to look at him fully as i mentally prepared myself for what my very first words would be to thomas edison.

5. the next couple of seconds shocked me. it wasn't me who spoke, but rather him and with diction i could never think of using in a simple sentence.

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hey, sorry if this was bad, i really didn't know what to write but i wanted to you. is there anything that you had to include within the excerpt?