单选题   ______ your kid is well again, you don't have to worry any longer.
 
【正确答案】 C
【答案解析】now that既然，由于(为连词)。given已知的，假设的(引导条件状语从句)。provided that假如，倘若(引导条件状语从句)。in the hope that希望能……，怀着……的希望。