Workbooks are free if you're my student! If not there's a small fee. Let me know if you're interested 🙂

I guess it'd be "per pound" if salad was actually sold that way? Saying "by the pound" implies that it's not sold by the pound normally, but you want to know what it would be if it were. "Per pound" suggests that it's already sold that way, and you simply want to clarify the price. For instance: "I paying $20 for a plate of salad?!...Hey, what's the price per pound?"

The first, no, not really. The second, unfortunately, yes: and we all had to listen to it over and over in that song on the radio 24 hours a day because of the "Dirty Dancing" soundtrack! https://youtu.be/4BQLE_RrTSU

It means the learner is not part of the cultures they're learning about. Perhaps they're in a different location or maybe a different social, economic or ethnic group than the one they're studying.

"I can teach you English because I've learned it for years, so I did practice what I preached." 1) "I've learned it" implies that you no longer learn it because the present perfect is actually used to talk about a past action that happened at some undefined moment or moments in the past. "I've been learning it" sounds like it's active nowadays. 2) "I did practice" is the past simple, for completed actions. Remove the "did" unless you mean that you no longer practice what you preach. Also, it's not clear what you "preach" from the example you posted, but maybe in the context it makes sense.

Just to add to Dee's correct comment, when you learn verbs in English, learn them with prepositions. The reasons why one preposition like "of" is used whereas another like "to" is not used, is often not particularly logical. Becoming familiar with those patterns will give you a lot of "mileage".

If the weather doesn’t get better, I won’t be able to go out. IF + Present + Future is called the "first conditional". Your sentence follows the 1st conditional formula, so you know right away it's correct. Can we change the formula? Sure, but the meaning will change as well. "If the weather doesn't get better, I'm not going out" sound very informal and maybe even more emotional. "If the weather doesn't get better, I wouldn't be able to go out". This is really a mixed conditional (1st mixed with the 2nd conditional) and it's also correct to use mixed conditionals. But, now we're projecting an uncertainty into the future. There's a lot more to say about conditions, but "if you don't mind" (wink) let's leave it here for now.

Here dependents refers to those under the jurisdiction of HK, who would also be under Chinese control by extension.