Will you help him________ you see an old man in trouble ?

The income of skilled workers went up. ________, unskilled workers saw their earnings fall.

 __________ the term has come to an end, I’m going to rest for a few days and then take a trip. 

(2013·烟台一模)After ________ seemed an endless wait, it was her turn to enter the interview room.

The world considers Japan to be the best prepared to deal with an earthquake emergency. _______, the March 11 earthquake, followed by a strong tsunami minutes later, still left thousands of people dead.