Which of the following doesn’t belong to the Four Great inventions of Ancient China?
--- It’s so hot today. Why not stay at home and read books? --- ___________! Let’s read the novel Twilight.
---Could you tell me __________ my English?---By listening and speaking more.
---The population of Henan ___________ very fast.---I agree. The population problem may be one of the most serious ones today.
---Have you heard about Volunteer? ---Sure, A volunteer is someone _________ is willing to offer help without being paid..
---You see, great people ___________not because they were beautiful. ---Right. They didn’t give up when their lives were difficult.