1 . Nowadays, people around the world are more c________ about protecting the Earth than ever. (根据首字母单词拼写)

2 . When she was abroad alone, her parents were c________ about her safety very much. (根据首字母单词拼写)

3 . The teacher was c________ about the students’ understanding of the lesson after checking their homework. (根据首字母提示拼写单词)

4 . We are all _________(关心) about his health. (根据汉语提示单词拼写)

5 . Parents are always ________(关心)much about their children. （根据汉语提示单词拼写）

6 . You should tell your parents that you’re fine, or they would be c________ about you. (根据首字母单词拼写)

7 . He was __________ (关心；挂念) about his parents when he went abroad.

8 . As tourism develops, people are becoming increasingly more c________ about the environment. （根据首字母单词拼写）

9 . I am c________ about the African elephants. They are being hunted for their teeth. （根据首字母单词拼写）

10 . As tourism develops, people are more c________ (担忧的) about the environment. (根据中英文提示填空)