1 . More research is needed to see if improved fitness could have ________ positive effect on the risk of dementia (痴呆)...（用适当的词填空）

2 . 他又被锁在外面了;他本应带一把备用钥匙的。
He was locked outside again; he should have taken ______ ______ ______.

3 . Throughout the 10-day Festival, Kona coffee farms offer ________ firsthand look at growing this world-famous crop. （用适当的词填空）

4 . —I went fishing with my good friend yesterday.
—Wow, it was really _________ enjoyable day.

A．a

B．an

C．the

D．/

5 . While it may lay eggs in a nest like a bird, it is really a primitive mammal with _________ unique biology. (用适当的词填空)

6 . 作者把阅读小说作为一种摆脱令人困惑的世界的方法。
The author takes novel reading as a way to get away from____________.

7 . 我忍不住会认为这是一种另类的生活方式。
I can not help but think _________.

8 . 植物要想生长得好需要水和阳光。同样，健康的身体需要均衡的饮食。
Plants need water and sunlight to grow well. Similarly, a healthy body requires ________ ________ ________.

9 . In many developed countries, bikes are only used for sports instead of____________ means of transportation. (用适当的词填空)

10 . 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. There is going to have a sports meeting before National Day.
2. It’s hard for him to do so many homework in one day.
3. Steven thought for a while and came up with a idea.
4. There were many people who lost theirs lives in World War I.
5. This is the book which I buy with my parents yesterday.
6. The number of students in our school is over two thousands.
7. I am looking forward to hear from you.
8. Look at those Germen. How happy they are!
9. Either Johnson or his sister are going to visit the Great Wall soon.
10. Many factories use plastic (塑料) instead off metal (金属) today.