Our teacher often makes a schedule to get herself _______ of what is to be done in the day.

Research ________out at Livepool University supports this idea and suggests that if we don’t use the sense of direction, we’ll lose it.

That light rail transit line(轻轨)，started in July 2009 and _________in 2012, will be China’s longest light rail transmit line in history.

They found a _____ old man _____ on the ground when the door was broken open.

 ________ we stand; ________ we fall.