There are too many （乘客） on the bus． It's so crowded．
My watch is lost． I have to find it， or Mum will （惩罚） me．
When he was looking into a hole， a big cat appeared （突然地）．
National Day is coming． I'm looking forward to （参观） Tian'anmen Square．
Sometimes we feel （孤独的） even though there are lots of people around．