Before going abroad，he devoted all the time he could ________ his spoken English.
A. to improve B. to improving
C. improve D. Improving
Nobody but doctors or nurses and those ____ by Dr Hu ____ to enter the patient’s room.
A. invited; is allowed B. are invited; are allowed
C. being invited; allowed D. invited; are allowed.
Zhu Zhiwen，________ grassroot singer，was ________ real hit in 2012.
A. the；/ B. a；the C. a；a D. the；a
暑假国外旅行时同团的一个小女孩于上午10点左右在机场咖啡厅附近走失，请你替她焦急的父母写一份广播稿通知找人，要点如下：女孩名叫玲玲，4岁，身高110cm左右，长发大眼，身穿红裙白鞋。如发现任何线索请将小孩送到机场广播站或拨打电话677-852-4523。对提供帮助的人表示感谢。
注意：1. 词数100左右； 2. 可以适当增加细节，以使行文连贯； 3. 开头和结尾已为你写好。
短文改错（共10小题；每小题1分，满分10分）
假定在英语课上老师要求同桌之间交换修改作文。请你修改你同桌写的以下作文。文中共有10处语言错误, 每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏词符号(∧)，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．只允许修改l0处，从第11处起不计分。
Your problem is common one among middle school students．Maybe the following advices can help you．First in all，believe in yourself．Your greatest problem is that you lack self-confidence．The first thing you must do is to smile at your classmates．One smile speaks loud about your wish to make friends than any word．Your smile will show that you are friendly to him．Next．trying talking with a student who is as shy as you or who share the same interests you．You can discuss your studies with a classmate．and you can also talk about your hobbies as well．Unless anyone is in trouble, you should be ready to help him or her．Once you have confidence．you can make as many friends as possibly．
Scientists have discovered that 1. (stay) in the cold could help us lose weight. Researchers at the University of California found that exposure to the cold increases levels of a protein that helps form brown fat -- the type of fat that produces heat and keeps us warm. Brown fat burns energy, 2. helps us lose weight. White fat stores extra energy, which results 3. weight gain. The researchers said that because air conditioning and heating give us constant, 4. (comfort) temperatures, our body’s need for brown fat has decreased. They found that outdoor workers in northern Finland who 5. (expose) to cold temperature have 6. significant amount of brown fat when 7. (compare) to same-aged indoor workers.
The research was conducted on two different control groups of mice. 8. group was injected with the protein that helps create brown fat. This group later gained 30% less weight after both groups were fed high-fat diets. The researchers say this could be good news in the fight against obesity. People who are obese have 9. （low) levels of brown fat than thinner people. If you can somehow increase levels of this protein, you could 10. (possible) lose more weight even if eating the same amount of food.
