the airport is within 20 km (?) the centre. this is a question from BEC Higher and the answer is "of" here, but i wonder why "to" is incorrect here.

what does "Post help" mean? it's about personnel record, but not sure what it means. would you kindly help? thanks!it's one of the questions from an exam which includes: name, address, department, Post help, Monthly salary, and the answer for this question is "office assistant". It's about a man asked his colleague about some information of a former staff.

Is this a wrong sentence? This sentence below is from an English exam in China, can you understand what it says? "Fertilizing these concepts in their minds made them more interested in the world and most important their place in this ever- changing, ever-evolving, messy place"

what's the difference among intrude infall inbreak invade? are they interchangable? please not just copy the dictionary, as they are too subtle to distinguish each from others, many thanks.

what does out mean here in "it's so hot out here"? how should i understand the out here, hot out or out here, and what's its exact meaning?

what's the difference between pottery and ceramic? would you please explain me with the real facts instead of the definition in dictionary?

what's the difference between loft and attic? I'm not asking about these two wrods but the meaning behind.

what does SHEER exactly mean? The truth is he's probably contributed more than anyone else in terms of sheer energy and ideas to the projects he's work on. It is unclear yet how much of it will stand the test of time, but for sheer industry, the business schools deserve credit. Would anybody help put another word to replace SHEER in these two sentences? can solely, only do?

Question on filling gaps to a sentence The power and pace of technological and scientific development, combined with economic and social pressures, are ____ huge changes in our industry A forcing B impelling C urging D thrusting May I ask which to be chosen and why others should not be chosen?