Los Angeles Times reported that researchers may have found a way to _________ human life by changing certain genes, so that humans might expect to live twice as long.
125. All the parents at the meeting their concerns about their children's safety.
124. When the audience heard the funny story, they _____ with laughter.
123. The student carefully to the headmaster that his late arrival was caused by traffic jam.
122. The homesick girl found that she missed her parents more than she had _____.
121. Those who managed to _____ the prison will be punished.