1. (2021高一上·海林月考) 每个句子都有一处错误，每处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。2）每个句子只有一处错误。

1. （1） At first I was really sad, and later I realized that I joined the team for the love of the sport.
3. （2） Because it was his first day at senior high, he got up early and rush out of the door to his new school.
5. （3） Mr. Meng said that difficulties at senior might put them with pressure.
7. （4） Meng Hao was nervous about introduced himself in front of the class.
9. （5） Arriving at school, Meng Hao decided explore a bit.
11. （6） After the English class, Meng Hao thought he had good beginning to his new school life.
13. （7） He met a man which he was surprised to find out later was his English teacher.
15. （8） There are various after-school activity in senior high school in the UK and the US.
17. （9） Look! What happy the children are in the garden!
19. （10） After-school activities play a important part when students apply to college.
21. （11） Take part in after-school activities helps gain more skills and care about others.
23. （12） Lisa graduated at the senior high school last June and is about to go to college in New York.
25. （13） We'll definitely get some hint from her suggestions.
27. （14） Lisa was not selected for the competition. She felt very disappointing.
29. （15） See this, the teacher told me not to be shy.
31. （16） He had finished his work since 2 hours ago.
33. （17） I am looking forward to arrive there on time.
35. （18） It all depends what you do.
37. （19） I was sleeping in the class while my teacher came in.
39. （20） I was so nervous to pay attention when he introduced himself.