In this task, you're given a context passage, followed by a question that needs to be answered. Based on the paragraph, you must write unambiguous answers to the questions and your answer must refer to a specific phrase from the paragraph. If multiple answers seem to exist, write the answer that is the most plausible.

It was summertime and I was very thirsty. I wanted to drink orange juice very badly, but I did not have any orange juice. Luckily I had an orange tree in my backyard. I picked some good and ripe oranges to juice. In the kitchen, I brought out my electric juicing machine and plugged it in. I washed the outside of each orange to make sure my juice did not get dirty. Then, I cut each orange in half and turned the juicer on. This kind of juicer worked by spinning a plastic piece inside the juicy part of the orange when you held the orange against it. The juicer squished all the orange bits inside the peel and turned it into juice. The juice came out the side of the juicer from a spout and poured into a glass that I had put there before. The juicer was very good at its job, and removed all the seeds from the juice that came out for me. The orange juice was fresh and tasty. 
Question: Did anyone help them?
No, they did it alone.

Cause I'm through to the third round and I've counted at least 7 who didn't make it this semester , which brings the grand total up to 11 . 11 out of 48 since last spring who've been held back , dropped out or failed out . And some how I've been left unscathed . But honestly , there were a few who didn't try . One who allegedly came to clinical with alcohol on her breath . 
Question: What may have caused only 11 to remain this semester ?
Many of them couldn't keep up with the challenges .

Casey invited his parents over for dinner one night. He was preparing a meal and put food into the oven. 
Question: How would Casey feel afterwards?

proud