1 . The police are still working at the s______ of the crime to find out whether the victim was killed at the place where he was found.（根据首字母单词拼写）

2 . In the a________ of evidence, the police had to let Mike go. （根据首字母单词拼写）

3 . As a c______ of smoking, my father coughs frequently. (根据首字母单词拼写)

4 . I really like the restaurant, which uses music and lighting to create a romantic a ______.(根据首字母单词拼写)

5 . But Doyle’s main a________ was to become a writer of historical novels. （根据首字母单词拼写）

6 . Tourists shall observe and respect local c________while in foreign countries. (根据首字母单词拼写)

7 . Most teachers were in favor of the proposal; only a m_______objected to it strongly. (根据首字母单词拼写)

8 . When you struck the match to light your cigar I saw it was the face of the c________ wanted in Chicago. (根据首字母单词拼写)

9 . It would be foolish of you to let such an o________ slip away; It's a chance of a lifetime. （根据首字母单词拼写）

10 . Those c________ divide and give many other different types of cells. (根据首字母单词拼写)