This time last year I paid a visit ______Shandong which is 5000 kilometers _____.

Although police could be seen everywhere, they seemed to be searching the houses almost ________.

At the railway station，he waved goodbye to his friend until the train was ________.

Four other students aren't in the classroom ____ Lin Tao.Where are they ?

He told me his computer company was in great need of a capable leader, ______ with strong will as well as good humor.