1、I’ve just misplaced my keys.我刚刚把钥匙放错了地方。
2、When did you start planting so many young trees?你是从什么时候开始种植这么多小树的？
3、I have finished reading the novel.我读完了这部小说。
4、They are not here at the moment.他们此刻不在这里。
5、I have some unfortunate news. I am now unemployed.有些不幸的消息，我现在失业了。
6、It is my first visit to this place.这是我第一次来这个地方。
7、They are still in progress.他们还在进行中。
8、How many times have you visited Singapore?你去过新加坡几次？
9、My mom has never experienced air travel.我妈妈从未乘坐过飞机旅行。
10、I’ve been dedicating my time to doing my homework.我一直在专心做作业。
