When a teacher asked his students to save their water bottles, Austin was determined to not just have a role to help the environment     1     to make a huge impact. The boy set out to collect hundreds of water bottle     2     (cap), which would be recycled and used to make prosthetic limbs (假肢). “I went home and thought of a way I could collect enough to help out.” Austin said that he     3     (be) aware that it was a simple way to help out young kids in need.

China’s space medicine experts have started planning to set up a “space hospital”     1     (serve) astronauts, according to a     2     (lead) scientist. These experts are carrying out experiments and tests on the ground to advance the basic work on a space hospital. The value of this project is that it     3     (enable) our space explorers to travel deeper and stay     4     (healthy) during their journey. The research of such a space-based clinic will also help to develop our country’s medical technology.

Last month, I passed by a cinema in the city center. A movie poster     1     (catch) my eyes. To my amazement, the new film     2     (produce) by Sam, one of my students. Sam was born in a poor family. His parents could not afford to send him to an art school     3     he could learn performance and filmmaking. So I helped and supported him. Sam had a talent for film and kept on all the way.

4 . In a winter evening, Gus Kiebel was driving home from work. Suddenly he _________ a pair of beagles in the flash of his headlights. It was snowing so hard, but he could tell the dogs were wearing collars and labels. Gus parked his truck and _________ the animals. He squatted(蹲) and stretched out his hands to the beagles. He read their labels by his truck’s headlights—these two dogs were a couple. He _________ his phone to call the number listed, but it was snowing so hard that his screen blurred.

Then he placed the dogs in his truck and they snuggled(依偎) together. Gus dialed the number from the dogs’ _________. Unfortunately, the call declined. But Gus dialed again. A man _________ and immediately grew defensive. “I gave those dogs away,” the man said. “They’re not mine anymore.” The man hung up.

It was _________ that these beagles were abandoned. As a boy, Gus had dreamed of owning beagles, but he already had a family dog. The next day, he took the dogs to the shelter to drop them off—on one condition. “I’m not signing the dogs over to you if you’re going to _________ them.” he said. The shelter workers promised him they’d keep the couple together.

In the following days, Gus phoned the shelter _________ to check up on the pair of beagles. Soon after Christmas, the beagles were _________, as a pair, and adopted to a loving family. What Gus did brought out the best in our nature. And when __________ and love overcome cruelty and the elements, it can feel like the greatest miracle of all.