题目内容：

单句语法填空

结合语境，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

1． We all feel it is Jack as well as his wife that is ________ (blame) for their son’s bad performance at school.

2． Nothing can prevent me ________ (finish) my work. I’ll carry on with it.

3． Sarah, hurry up. I’m afraid you won’t have time to get ________ (change) before the party.

4． ________ (expose) to sunlight for too much time will do harm to one’s skin.

5． China opened ________website on the South China Sea, complete with historical maps, articles and research, for some information online is not correct.

6． —You should have thanked her before you left.

   —I meant _______, but when I was leaving I couldn’t find her anywhere.

7． Radium, ______ (discover) in the chemistry lab, gave off a blue light.

8． It refers to something in the past which is directly linked ________ the present time.          

9． _________ newspapers and the Internet have in common is that they do more than simply record what happens.

10．The British government has issued a new visa policy _________ allows foreign students to stay six months more after their course ends.