pretending to be serious造句

• When things are bad , pretend to be serious
  情况糟糕的时候至少要装得严肃点！
• He was really joking ; he was only pretending to be serious
  他其实是在开玩笑；只是假装一本正经罢了。
• He pretended to be serious , but you could tell that he had hi tongue in his cheek
  他装作一本正经，可是你看得出他是在开玩笑。
• He pretended to be serious , but you could tell that he had hi tongue in his cheek
  他装作一本正经，可是你看得出他是在开玩笑。