you have expressed your fierce determination to get it right, you should act immediately.
A. Even though
B. Ever since
C. Now that
D. As though
网友回答
A. Even though
B. Ever since
(答案→)C. Now that
D. As though
解析：连词辨析。A尽管；B自从；C既然；D似乎。结合句意可知C正确。句意：既然你已经表达出强烈的决心，你就应该立刻行动。