`*` Note: Có giải thích nhé. $1$.I have never had an easier exam A In fact I have never had any easy exam B This is the first time in my life that I have an easy exam C This is the easiest exam I have ever had D This exam is easy, but I have never passed it $2.$In spite of his poor health, he managed to finish his book before the deadline. A. Although he was unwell, he managed to finish his book before the deadline. B. Even though he managed to finish his book before the deadline, he was sick. C. He was in poor health when he managed to finish his book before the deadline. D. He managed to finish his book before the deadline, but he was very ill.