I’ll come to help you ________．
A.if you are possibleB.if is possibleC.if it will be possibleD.if possible在线课程D
根据句意判断，“可能的”表示的是情况，而不是“你”，可排除A项；B项的条件状语从句中缺少主语，应排除；C项在条件状语从句中用将来时错误；答案为D项，if possible是if it is possible的省略。