Saying "in the season" would be incorrect in that context. EDIT: Thanks to 雲小泉, "into the season" is obviously rubbish and I've edited it out.

in the season...X to the season...O into the season...X (sorry @ Evil) Because of the word "start" you must use "to".

Hey M.K, Since your question has already been answered I wanted to point out a few errors you made. 1) As aus_rich already mentioned, 'study' becomes 'studied' in the past tense. 2) 'in stead' should be one word- 'instead'. 3) 'uncorrect' should be 'incorrect'. 4) We don't usually say 'both two'. It is considered repetitive. 'If both are correct' is the phrase usually used. 5) 'difference of the two' should be 'difference between the two'. If we were discussing three or more things, you would say. "difference among the three", for example. I hope you understand my corrections. Sorry if any of it is above your current level of study. Good luck!

Hi Megumi, this is slightly unrelated to your question but I noticed this error: When using the past tense of "study", it becomes "studied". You actually change the "y" to "i" and add "ed". This is common with the past tense of most verbs ending with -y. e.g. Bury => Buried Hurry => Hurried Cry => Cried And hey, while we're at it... Curry => Curried