A-A+ Although it takes up much of his spare time M 2022-07-31 22:48:27 外语考试 阅读 问题详情 Although it takes up much of his spare time, Mr. Smith finds stamp collecting extremely ______.A．progressiveB．encouragingC．rewardingD．challenging请帮忙给出正确答案和分析，谢谢！ 参考答案 查看解答
