The reason __________ he explained was __________ he was ill and unable to go to school.
Our physics teacher and English teacher always give their lessons in a lively and clear way,____ greatly benefits us students.
In 2012 MoYan won the Nobel Prize for Literature, ___a host of imitators.
You must notice ____ the emergency exit is when you enter the building.
Oh, I'm not feeling well in the stomach.I ____ so much fried chicken just now.
Changing the design of a new product may ____ the risk of its production in the market.