A-A+ He tried and tried but all his efforts were ______.A．in no wayB．on the contraryC．at a loss 2023-05-09 23:54:30 外语考试 阅读 问题详情 He tried and tried but all his efforts were ______.A．in no wayB．on the contraryC．at a lossD．of no avail请帮忙给出正确答案和分析，谢谢！ 参考答案 查看解答
