1．(教材P26)I stood for a minute watching(watch) them and then went to greet them.
2．(教材P26)Then Akira Nagata from Japan came in smiling(smile), together with George Cook from Canada.
3．(教材P26)In the same way that people communicate with spoken language, they also express their feelings using(use) unspoken “language” through physical distance，actions or posture.
4．Having smoked(smoke) too much, he has suffered from lung cancer.
5．Hearing(hear) the news, they jumped for joy.
