I- Rewrite the sentences so that it has the same meaning to the original one 
1- The typhoon occurred when the governement had  declared a state of emergency 
->Before .........................................................................................................................................................
2- People eat vegetables which farmers use much pesticide on. People may be poisonous . 
->If . ..........................................................................................................................................................
3.The severe storm badly damaged crops two months ago.
 Crops.............................................................................................................................................................
4. She lives next to a building site, so she becomes sick because she can’t sleep or relax.  
-> If she ........................................................................................................................................................