✔ 最佳答案
Actually 【stare at】is exactly correct, who say you are wrong ?
Both【busy at】& 【busy with】 is right and 【account of】is correct. Certainly!!!
Actually all the prepositions don't need to recite, you should read more English storybook, newspaper...etc. Then, you should what the are the meaning of the prepositions. After that, you should use the prepositions to composition, listen more and talk more everyday. Use them in your life !!! I give you some more prepositions :
1.at---noon/7:00/sunset/night/lunch(time)/Christmas/the age of 17/that moment/that time
2.in---the morning/March/2007/summer
3.on---Sunday/Sunday morning/my birthday/Christmas Day/20th December
4.till/until---直至
5.by---最遲(time內)
6a.after---之後 6b.before---之前
After....(先)........, ......(後)............
Before.....(後)......., ........(先).........
7.for---幾耐
8.since---自從
9.during---期間/當
10.within---...之內
^~^ When you use these prepositions, you should remember the usage(用法) & the meaning of the sentence.
^_^ 學多D, 練多D, 自然會識多D !!! (Learn more, practice more, then know more easily !!!)
參考: My Knowledge + My Mind + Learned