.Prepositions
 21. I need a dictionary to look ____ new words.
22. Can you put ____ your cigarette please ? 
23. You should go ____ your test paper before handing in it ? 
24. She didn't get ___ ___ her boss, so she left the company.  
25. He lacks qualification, so his application form was turned ____ .
26. All the staff will see the director ___  at the airport. 
27. Every country in the world has faced ___ ___ the serious pollution. 
28. We had to call ____ the party because of the heavy rain. 
29. Will you wait a few minutes while I'm looking ____ the text? 
30. I think you should take ____ jogging because it's good for your health