Read the excerpts from Team Moon and the NASA article. Thirty seconds! Now would not be the time for the two Bobs to miscalculate, miscount, or lose their superhuman powers of concentration. They could not afford to be wrong.

When the lunar module lands at 4:18 p. m. EDT, only 30 seconds of fuel remain. Armstrong radios "Houston, Tranquility Base here. The Eagle has landed."

A reader can best combine the information in the excerpts to

understand that managing the moon landing while the lunar module had 30 seconds left of fuel required intense concentration.
understand that having only 30 seconds of fuel could easily have become a disaster while Armstrong was landing the lunar module.
understand that Armstrong radioed mission control when the lunar module landed on the moon at 4:18 p. m. EDT.
understand that it was impossible for the lunar module to land on the moon with only 30 seconds left of fuel.

harlem's  cotton club boasted the talents of duke ellington. singers such as bessie smith and billie holiday popularized blues and jazz vocals. jelly roll morton and louis armstrong drew huge audiences as white americans as well as african americans caught jazz fever.

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?