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) 

Regarding the name of the city sinbirska there are many different assumptions and explanations. some derive it from chuvashskago language in which the word " sinbirsk though, would mean " white mountain "or" live , live, why sinbirsk name means " abode of people. others suggest that the word" sinbirsk " scandinavian origin , from the word « sinn » - path, road and «biarg» - mountain, or «birg» - birch, so this derivation " sinbirsk " means or " roadside birch " or " mountain path " there philologists producing name sinbirska mordovskago from the language in which the word , " syuyun " and " bir " means " green mountain." others say that the turkic word " son means" tomb " tombstone, a " bip "means" one . " so" sinbirsk , in turkic language on russian , means "single grave "