题目内容：

下面10句话中，每句有一灶语言错误，请将其改正。错误涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1.每处错误及其修改均仅限一词；

1.To his annoyance, no sooner he sat down than the phone rang again.

2.We are trying our best to reach an agreement with all the people concerning.

3.I’ve kept practicing for some time and I am glad to find I have been improving ail time.

4.The naughty boy hid himself behind the door, from that he could hear what we talked about.

5.Don’t let any failure discourage you, for you can never tell what close you may be to victory.

6.Joined us tonight is professor Smith from Beijing University.

7.I hanged around the railway station for nearly an hour but he never turned up.

8.Huge amounts of money has been raised for the people in the flood-striken area so far.

9.There is no doubt about that their great efforts will pay off in time.

10.Tom ought to have apologized with me for what he had done.