1. choose the correct preposition and fill in the gaps with the -ing form of the verb: thank you for / to (help) me with my biology report. 2. translate: if this is true, than it may have influence elena's every action and emotion since she became a vampire.

1)Thank you for helping me with my biology report.

2) В пердложении беда с согласованием времен О_о Должно быть или "If this is true, than it may have influenced Elena's every action and emotion since she became a vampire."(Если это правда, это могло влиять на все действия и чувства Елены с тех пор,как она стала вампиром)  или 

"If this is true, than it may have influence Elena's every action and emotion when she becomes a vampire." (Если это правда, это может повлиять на все действия и чувства, когда она станет вампиром)