1 . When two ninth-grade students found smoke coming out of the back of their school bus early Tuesday morning, their bus driver knew just what to do. Thanks to her________thinking, more than 50 students` lives were________.

While________ a group of 56 students to their middle school in Duncan, South Carolina, on Tuesday, Teresa Stroble noticed the heavy________ rising from the back of her bus. She________pulled the bus over, evacuated (疏散) the students, and radioed the transportation office to ask ________to call 911. Firefighters arrived at the scene shortly after the fire began and quickly________the fire, which CBS News reported was so________ that people driving by were able to feel its heat inside their cars. Parents of the children on the bus were ________the fire, but thanks to Stroble, the news they received was all________not a single child had been hurt.

Since then, Stroble, who has been a bus driver for seven years ________ also works as a teacher`s assistant (助教), has been ________for her brave actions. “We are so________of our bus driver,” headmaster Scott Turner told local CBS News. “She was________. She also kept the students calm. She made sure they were safe. She didn’t leave the bus________ they all left. She is our ________today.”

The local fire department is still unsure what ________the fire, but some say that this 1995 ________has been known to have wiring and electrical problems. ________, we’re so happy that Stroble was able to think on her feet (反应迅速，随机应变) and keep everyone ________ .

Last Saturday I went to the library as usually. At noon, I was enjoying my reading near a lake when suddenly I hear someone crying for help. I went up to see what was happened. I was shocking to find a little child struggling in the water while many people were standing by without doing anything. With any hesitation（犹豫）, I had pushed through the crowd but jumped into the water quickly. I managed to reach him and carry him back to safety. Lucky, the kid saved. I was proud of that I had done. I hope everyone can give a hand when someone else is in the need.

3 . On Thursday morning, two teenage boys were rescued by a drone (无人机) in Australia while lifeguards were still training to use the machine.

The ______, aged 15-17, got into difficulties about 700 feet off the coast of Lennox Head, New South Wales (NSW). A passerby saw them ______ in dangerous waves. Lifesavers ______ sent the drone to drop a lifeboat, and the pair made their way safely to the ______.

The drone, known as “Little Pipper”, was actually not ______ to be saving anyone just yet---lifeguards were being trained to ______ the machine. When a call came about the swimmers ______, the drone happened to be nearby.

Jai Sheridan was the lifeguard who ______ the drone. He described the experience as ______. “The Little Ripper ______ proved itself today. It is a highly efficient (高效的) piece of lifesaving equipment. I was ______ the drone when the alarm was raised. I directed it towards the swimmers, and dropped the ______. With its support they made their way to safety. They were ______, but not hurt. The teens were rescued in just 70 seconds with the drone---while a lifeguard would have taken up to six minutes to ______ the rescue.”

John Barilaro, an official of the state, ______ the rescue as historic. “It was the world’s ______ rescue by the unmanned aircraft”, he said. “Never before has a drone been used to ______ swimmers like this.”

Last December, the NSW state government ______ some “Little Ripper” drones for 247,000 pounds. ______ some are designed to spot sharks, others are ______ with lifeboats, alarms and loudspeakers. “It was money well spent,” said John Barilaro.

4 . A young English teacher saved the lives of 30 students when he took______ of a bus after its driver suffered a serious heart attack. Guy Harvold,24, had ______ the students and three course leaders from Gatwick airport, and they were travelling to Bournemouth to ______ their host families. They were going to ______ a course at the ABC Language School in Bournemouth where Harvold works as a ______.

Harvold, who has not ______ his driving test, said, "I realized the bus was out of control when I was ______ the students." The bus ran into trees at the side of the road and he ______the driver was slumped(倒伏) over the wheel. The driver didn't ______. He was unconscious. The bus______ a lamp post and it broke the glass on the front door before Harvold ______ to bring the bus to a stop. Police______ the young teacher's quick thinking. If he hadn't ______ quickly, there could have been a terrible______.

The bus driver never regained consciousness and died at Easy Surrey Hospital. He had worked regulary with the ______ and was very well regarded by the teachers and students. Harvold said, "I was ______ that no one else was hurt, but I hoped that the driver would ______.

The head of the language school told the local newspaper that the school is going to send Harvold on a weekend ______ to Dublin with a friend, thanking him for his ______. A local driving school has also offered him six ______driving lessons.