—Tony misses his hometown very much. —Yes, he from his hometown _____he was twenty years old. A. has been away; for B. has left; since C. has been away ; since
--What do you think about Chinese Post-90s generation ?
--They are _________ from those born before them. They are very aggressive and pretty confident because they never felt hardship.
--Everyone wants to keep healthy without too much effort.
--So let's start from our mouth by _______ those healthy foods, which people can easily get in their daily life.