1 . To build up our strength, ______________________________ (recommend). (用括号里提供的单词续写完这个句子)

2 . 在决定是否出国留学时，把出国留学的优缺点都考虑进去是可取的。(desirable) (汉译英)

3 . 重要的是在公共场合你要举止规矩些。（behave）（汉译英）

6 . 请你修改以下的每个句子，每句有1处语言错误，错误涉及一个单词的增加或修改。
增加：在缺词处加一个漏字符号（∧），并在此符号下面写出该加的词。
修改：在错的词下面划一横线，并在横线下面写出修改后的词。
注意：每处错误及其修改仅限一词。
1. Tom thought that I did it deliberate, just to annoy him.
2. If exposing to the outside surroundings, they'll be stronger and better prepared for their future.
3. Only after I read the poem a second time did I make sense it.
4. Greatly to him credit, the high school teacher sent the elderly man back home on foot.
5. The policemen took action the instant when they heard the alarm.
6. Canada used to be America's largest trading partner, but China took a place of it in 2015．
7. I'm more than delighted to invite you to go to Xi'an, which is one of the most famous tourist attraction in China.
8. Two months sped by before he realized that he had missed the opportunity.
9. Neither my wife or I myself was able to persuade my daughter to change her mind and finally she joined in the game.
10. It's reported which the astronauts will carry out a series of scientific experiments in space.