just现在完成时例句目录just现在完成时例句just现在完成时例句1. I have already finished my homework. 我已经完成了作业。2. They have lived in this city for five years. 他们在这个城市已经住了五年了。3. We have seen the movie twice. 我们已经看过这部电影两次了。4. He has gone to the United States. 他已经去了美国。5. She has finished her master's degree. 她已经获得了硕士学位。