Too much pressure from study leads to sleeplessness, which _______ increases the risk of forgetfulness.
In this factory, it's hard to tell cadres ____ workers.
My brother is very good ___ ping-pong.
Taiwan is ____ the east of Fujian.
He went to Nanjing ___ October, 2008.
Information technology is taught in most schools, ________ we have entered the information society.