1 . We’ll try our best to catch up with the ___________ (advance) world levels. (所给词的适当形式填空)

2 . The school adviser recommended___________ (read) the book before seeing.(所给词的适当形式填空)

3 . From his confused look, I can say this is a______ (confuse) situation(情况)for him.(所给词的适当形式填空)

4 . Mandarin is the______ (office) language of China.(所给词的适当形式填空)

5 . The teacher demand that we______ (finish) our homework on time.(所给词的适当形式填空)

6 . My cousin gave me a______ (determine) look—the kind that said she would not change her mind.(所给词的适当形式填空)

7 . I still remember the day______ I first came to Beijing. (用适当的词填空)

8 . This kind of plant is n________ to India. (根据首字母单词拼写)

9 . The research shows that many teenagers are addicted________ (对...上瘾的)online games. (根据汉语提示单词拼写)

10 . I can’t c________ on my work with too much noise. (根据首字母单词拼写)