TASK DEFINITION: In this task, you are given a sentence in the English language and your task is to convert it into the Japanese language. In translation, keep numbers as it is and make it sentence case (capitalize only the first word of each sentence and noun).
PROBLEM: Fonseka, however, wasn't able to cast a ballot, apparently because his name didn't appear on the 2008 electroral register used for the elections.

SOLUTION: しかしながら、フォンセカ氏は、選挙に使用された2008年の選挙名簿に氏名がなかったため投票できなかった。

PROBLEM: Sweden made many goalscoring chances but its strikers must feel unfortunate that none were converted.

SOLUTION: スウェーデンは多くのゴールのチャンスを作ったが、ストライカーらがどれひとつ得点に繋げられなかったのを、不運だと感じるべきである。

PROBLEM: Although the number of smokers has stabilized or fallen in developed areas, it is rising in developing or transitional regions, which contain more of the world's population and already 84% of the world's smokers.

SOLUTION:
先進地域での喫煙者の数は一定の値で固定しているか減少しているが、世界の人口の多くが住んでいて、すでに世界の喫煙者の84％を抱えている発展途上や過渡期の地域では上昇している。