1．It’snouse（后悔）whatyouhavedone.2．Thelittleboygot（分开）formhisparentsinthedark.3．Thecookingtimeneeded（取决于）onthesizeofthepotato.

Question

1．It’s no use        （后悔）what you have done.                         

2．The little boy got        （分开）form h is parents in the dark.

3．The cooking time needed    （取决于）on the size of t he potato. 

4．A rainbow is a natural        （现象）.                                     

5．        （奇怪）they looked as if they were twins.                     

6．O        is a gas without color taste or smell present in the air and necessary for all forms of life on the earth.                 

7．To speed up the economy of the village we should develop its natural r        like

tourism.                                                                                  

8．F         is the second month of the year.                                  

9．School was over and I was both mentally and p         tired.       

10．It is generally a         that smoking is harmful to our health.   

Answer 1

1．regretting  2．separated  3．depends  4．phenomenon  5．Strangely 6．Oxygen   7．resources  8．February  9．physically    10．accepted