תרגום - יפנית-אנגלית - 金曜日の朝10ごろ開いている？ 能力試験に 勉強 しているから ...

The second sentence is in unnatural/mistaken Japanese, but the meaning seems to be:
"I want practice my spoken Japanese with you at 10 am on Friday if you're free at that time, because I am studying for the Japanese language proficiency test (Nihongo Nôryoku Shiken)."