After the boy disappeared, the anxious relatives and friends spent months trying to __________ what had happened.
As a coach,you should know clearly about the directionyour team should develop.
—Where would you like to have your dinner, in a French restaurant or in a Chinese one? —It makes to me as long as we can chat while having dinner.
The students are forbidden,unless they have special passes,________after 11 p.m.
It's quite obvious that the aging population in China will causeheavy pressure on ________ whole society in the future.
Taobao.com has begun selling tickets online for international flights, ______ to cut the market share of Ctrip.com and other competitors.