2 . But that’s how nature is —always leaving us ________(astonish). （所给词的适当形式填空）

3 . After the lecture, a few students remained ___________ (seat) in the hall.

4 . 下列各句中都有一处错误，错误涉及一个单词的增加、删除或修改，请按要求修改下列各句。
增加：在缺词处加一个漏字符号（Λ），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：在错的词下面画一横线，并在该词下写出修改后的词。
注意：1. 每处错误及其修改均仅限一词；
2. 每句只有一处错误。
1. When I met Mary for the first time, I was amazing by her appearance.
2. Beijing, known as its places of interest, attracts visitors from all over the world.
3. In a fact, I’m looking forward to doing my homework tonight.
4. Would you mind take a picture for me and my friends?
5. As a result the bad weather, many flights were put off this summer.

5 . Sam was now much more __________ (dependent) of his parents. (所给词的适当形式填空)

6 . A career in law is becoming increasingly _________(吸引人的) to young people. （根据汉语提示单词拼写）

7 . You should wear your ______(正式的) dress tomorrow.  （根据汉语提示单词拼写）