Ways to improve your TOEIC score

Revise first. In the TOEIC test you need to be able to not only answer the questions, but answer them quickly. This means that language that you learnt once but can't remember without thinking for 5 minutes first won't be much use in the rushed, high pressure exam. It is therefore almost always better to properly learn something you half know already than it is to add something new to your list of things to learn, especially if you have made sure that it is useful language by finding it in material for the exam or material for people of your English level. Make sure you spend at least 30% of your study time revising things you have studied before but don't know very well yet.