First of all, Hong Kong studied HKEAA A-level, and if you are a student in Chinese mainland, most of Chinese mainland studied CIE A-level, and a few schools studied Edexcel A-level, so mainland China and Hong Kong didn't study A-level, so don't buy textbooks there. Personally, I think it is difficult for Hong Kong A-level to CIE A-level.

There are some learning websites online that can give you:

/Various A-level papers

Of course, downloading textbooks is impossible.

As for where to buy books, you will get many booksellers by searching A-level in Taobao, but it should be noted that these books are not CIE A-level, but I think they are very helpful for your study. As far as I know, there are only a few textbooks published by CIE headquarters, so if you want to use textbooks, the ones on Taobao are not bad.

I was lucky enough to buy a book about A-level knowledge from China, but it was also in English.

/computers/common/info.asp？ Id=647390 There was only one book published in China, and I was lucky to get it. _

I'm bar owners from Baidu A-level bar. If you have any questions, you can come to see me at the bar.