I’ ll be back in half an hour to check your homework. 2. Take a look at it and try to out the language problems in the essay. 3. Since Mary will go for two years, I decide to see her off at the airport. 4. What pleasant weather; why not go out for a ? 5. My friend comes from a country to celebrate my birthday. 6. His honesty makes me believe that he will keep his promise 7. According to a science report, there are over (用阿拉伯数字) kinds of insects in the world. Look at the new English book How to Learn English I bought yesterday. 9. Whenever Smith has time, they . 10. After listening to a beautiful English song, she decided to English.