7．The present is _________(专门)chosen for your mother．

6．Today_________(广告)are very important in business．

5．Don't tell anyone about my plan．Keep it a s_________．

4．Mr. Smith has taught for many years，so he has much e_________ in teaching．

3．I asked him to help me，but he r_________．This made me feel sad．

2．If you go to Beijing，you'll see a lot of a_________ buildings，such as the Palace Museum and the Great Wall．

根据句意和提示写出单词的正确形式。

1．A hundred years is called a c_________．

听短文，根据短文内容完成下面的表格，短文听两遍。