(1) I have live in Germany for three years when I was a child. → lived
(2) I have visited Toji Temple two years age. → visited
(3) I do not put on my clothes yet. → have not put on
(4) Things have changed dramatically for the last few years. → over [in / during]
(5) I finshed the homework, and I can go out. → have finished
（解答）I have a headache for two weeks.
（別解）I have been suffering from a headache for the last two week..
（解答）Makoto studied for a year an Australian university as an exchange student when he was in college.
（別解）As a university student, Makoto spent one year in Australia on an exchange program.
（解答）I have been using a computer since this morning, so my eyes are tired [hurt].
（別解）My eyes are tired [hurt] because I have been staring [looking] at the computer screen since this morning.
（解答）I have met so menyu people in [over / during] the past [last] few days that I cannot [do not] remenber everyone's name [all of their name].
（別解）I have met too many people in [over / during] the past few days, so I cannot recall everyone's name.
（解答）This is the first time (that) I have (ever) attended [been to] a garden wedding [an outdoor wedding].
（別解）Today I am going to an outdoor wedding for the first time (in my life).
（解答）Last week, I borrowed two books from the library, and [but] I have already read both of them.
（別解）I have finished reading both of the books (that) I borrowed from the library last week.
（解答）When I was in college [in university / in high school], I hated [did not like] eating [to eat / having / to have] lunch alone [by myself] in the (school) cafeteria,
（別解）When I was a college student, I hated eating alone in the cafeteria during lunch,
（解答）SV..., because I found it unpleasant [awkward / uncomfortable] to have eye contact with strangers (who were) sitting in front of me.
（別解）SV..., because I disliked having to look at strangers (who were) sitting in front of me.
（解答）The style [format] of univerity entrance exams has changed over [in / during] the past [last] ten years due to [because of] (the) various demands of society [various social demands / society's various demans].
（別解）The style of university entrance exams has changed over the last decade in response to various social requirements.
（解答）I am going ti be [become] a college student [a university student] this April, so I have decided [I am determined] to live away from home and rent an apartment. I think this will be an opportunity to live my own life [to live (all) by myself / to become independent].
（別解）I have decided to live away from home and rent an apartment when I become a college student next April. This will give me a good opportunity [a good chance] to become independent.
（解答）For the past [last] few years, the number of children has been rapidly decreasing [declining / diminishing], and our society has been rapidly [quickly] aging with increased life expectancy [as life expectancy increases]. This phenomenon is creating [causing / leading to] many problems.
（別解）These days, the nuber of chaildren is rapidly decreasing, and our society is rapidly aging with longer life expectancy. That is why many problems are arising now.
I learned one important lesson through a bitter experience I had when I was a junior high school student. I had two close friends, Miho and Emi. One day Miho said bad things about Emi, and she told me to keep it a secret. However, I told on her to Emi. They had a big quarrel ando Miho did not forgive me. After that big fight, Miho and I were on bad terms, too. I lost two friends. I learned from this experience that keeping a secret is critical if you want to have good relationships with friends. （98字）