In the question 15, there is a keyword "transition period" in the stem. Through this keyword, it can be judged that what this sentence wants to express is "now in the system transition period". Since it is a switch, it must be a transition from the old system to the new system, so choose the "old" system and see other options. "First" generally refers to the past, and there are few Chinese words. "Yesterday" often refers to a long time ago, such as "yesterday's words". And "Yuan" generally refers to the former, such as "Bi Yuan".

Question 42: Of course you can't understand my feelings, and I don't want you to. たぃぃてほしぃぃぃぃぃぃてほしぃぃぃぃ𞊣𞊣𞊣 1235

Question 43, "たばかりだ" means that I have just finished something. That sentence means that I have just eaten, and now I am hungry. のに means a turning point. I just finished eating, but ...

Question 44. The こぅ line indicates that you have decided to go, but the きたぃ line indicates that you want to go. Based on the context, this sentence means that when choosing a university, you should seriously consider whether you really want to go to that university. Verb/adjective+かどぅか indicates two different results of things, such as ぉぃしかどぅか = delicious or not, やる.