the problem is very difficult,but he worked it out ____ a last b _英语解答

the problem is very difficult,but he worked it out ____ a last b end c finally
the problem is very difficult,but he worked it out ____ .
a last b end c finally

人气：161 ℃　时间：2020-02-04 14:41:40

解答

你想选A请在题目加一个at 如果你想选B请在题目加一个at the题就是这样子的啊我是说这题选第三个如果你想知道为什么不选第一个因为第一个少了一个at 如果你不明白为什么不选第二个因为第二个少了at the 只要加上这些A B都是正确选项