The boy is very fat _____________ eating ___________ food.  

---Seems no one knows _____ what happened to Malaysia Airline Flight 370.---It’s really sad, hope more and more resources will be offered in the search.

–Do you know _____ the sports meeting lasted?--Three days, from April 11th to 13th .

 -- _______ are you going to the School Uniform Exhibition, Amy ?-- To learn about different styles of school uniform.

 — Do you come to South Korea for the ________ of seeing your family or doing business?— I come here on business.