Ok, let's try a little harder. I don't normally help people with auto transmissions (I'm a stick shift guy) but you're so polite I'll make an exception.
I'm now assuming you are talking about the main transmission shift lever and not the 4wd transfer case lever, is that correct? Assuming yes, I see two bolts that are possible problems. One is the bolt that holds the handle on to the shift lever, and the other is the long bolt that holds the shift lever on to the top of the transmission. I'll assume it's that one, as just the handle screw would not cause the symptoms you describe. That long one could be faked with a smaller bolt.
So I'm thinking you need Control Shaft p/n 33516-35010 and nut 94130-60800 updated to 90170-A0003. There are also some bushings that may or may not be missing as well. Bushings are round short tubes that go between a shaft and a larger hole as sort of a bearing.
I would really suggest you get those from a Toyota dealer. They need to be the exact size, and the bolt is really a piece--Toyota calls it a Control Shaft--, not a standard fastener.
Shaft Control No.3 | Genuine Toyota | 33516-35010 : Toyota Parts Factory | Your #1 Source for Genuine OEM Toyota - Scion Parts and Accessories
and
Nut Hexagon | Genuine Toyota | 90170-A0003 : Toyota Parts Factory | Your #1 Source for Genuine OEM Toyota - Scion Parts and Accessories
If you just go to a dealer you will pay maybe $5 more than these prices, but you won't have shipping. I would ask your shop teacher if he thinks the bushings are missing as well, because you need those. If they are, I can help with those, too.
On the other one, I really need more info. Is he maybe talking about the bolts that hold the front drive shaft to the front differential? But if you were missing all of them, it would fall off. I know it can't be the end that goes to the transfer case because those are fixed studs, not bolts. Maybe you are missing just the nuts that hold the front shaft to the transfer case? Those would be M10 locknuts plus a flat M10 washer. Nut p/n 90179-10059 and washer 90204-10002 in case you want to get them at the dealer. You would need four of each. I'd actually prefer to pay a little more to get the Toyota ones; they are a fairly critical part.
Ask your shop teacher if these sound like the right answers.