根据图片提示完成下列句子。 1. —Where's your pen pal from?—He is from _______. 2. Does his aunt go to _______? 3. Where can you see the sightseeing in the picture?_______ in China. 4. If you visit _______, you can see Tian'an men Square. 5. Look at the flag, Which _______ is it? It is United States.