Someone in the crowd called out his name, but he couldn’t see ______.
.―Remember to pick up your little sister on your way home.―_______. You can depend on me.
China is_______vast country which is home to______amazing variety of landscapes, plants and animals.
.I'm sorry the rooms are all booked out today. That is to say, there's no room _______ for the moment.
In _______ 1960s, ________ number of habitants here is very _______ ,and it was since the middle of 1970s that the population has been increasing rapidly.
My sister, as well as her classmates who ______ late for class, ______ criticized by Mr. Hunt.