1. (2022八上·哈尔滨开学考) Good study habits are very useful. You'd better ________ when you prepare for a test to get good results.

① get all of the proper materials including books, pencils and paper ready

② not have a rest every hour to make you feel less tired

③ come up with study questions and try not to answer them

④ try marking some of the topics mentioned in the book.

⑤ underline the words that you do not understand