If you want to practice, you can consider buying a Shanghai course pass, or a gold training class or a gold coach.

If you want to explain, you can consider buying How to Learn Oxford English. The amount of practice in the back is not too small or simple.

If you want to buy a test paper type, you can consider buying YLE.

I don't know if your textbook is Oxford edition or New Century edition. The above is the Oxford version of the teaching aid. If not, you can ask me.

Chinese can consider buying "Modern Literature Click to Read China's Classical Poetry". This book is very good, the title quality is very good, but the answers are not very matching, so you need to pay; Or you can subscribe to a Chinese learning newspaper.

Mathematics can consider buying "one lesson and one practice", and the answer is in place; Or buy a junior high school math unit test or book a math course.

Physics can consider buying a successful BBK with a good title.