1、I’ve just lost my keys.我剛丟了鑰匙。
2、Since when have you planted so many young trees?從什麼時候開始你種植了這麼多小樹的？
3、I have read the novel.我看過這部小說了。
4、They have gone out.他們已經出去了。
5、I have bad news. I have lost my job.有壞消息，我丟了工作了。
6、This is the first time I have been here.這是我第一次到這兒。
7、They haven’t finished yet.他們還沒結束。
8、How many times have you been to Singapore?你去過新加坡幾次？
9、My momhas never travelled by air.我媽媽旅遊從來沒有坐過飛機。
10、I've been doing my homework.我一直在做作業。
