答案：C

题目分析：句意：自从五点我一直在等我叔叔的电话。我认为你不应该担心他，他不仅是个技术好的司机也对路况很了解。 How long has he been away?他离开多久了？What's the matter with him?他怎么了？I don't think you should worry about him.我认为你不应该担心他。I'm afraid there's something wrong with the telephone.恐怕他的电话有问题了。根据He is not only a skillful driver but he also knows the road very well他不仅是个技术好的司机也对路况很了解，可知不用担心他，故选C.