V.  Complete the sentences, using the correct passive form of the verbs in brackets. 34. Severe damage to environment                                        by prolonged droughts in Central Viet Nam last July. (cause) 35. Tomorrow the dam                                   to prevent salt water from entering the fields in TienGiang Province. (close) 36. The hot weather                                        to continue while there were longer hours of sunshine. (expect) 37. Two naval ships                                        to the island to rescue fishermen. (send) 38. Oil rigs throughout the Gulf of Mexico                                        during Hurricane Katrina. (hit) 39. Roofs of thousands of houses                                           across the road during the cyclone. (blow) 40. Villages along the river                                        about a high risk of landslide every year. (warn) 41. Fires in the wild                                        by Forest Fire Fighters who use different techniques before the fires can destroy too much land or property. (put out) 42. More than 20 streets in Bien Hoa                                                 to a depth of up to 80 centimeters last Friday. (flood) 43. After Typhoon Linda, over 2,200 school rooms                                                        , and 4,000 school rooms                                            . (destroy - damage) GIÚP MÌNH VỚI Ạ, MÌNH ĐANG CẦN GẤP LẮM Ạ, HUHU