A group of soldiers went into the woods _______ the missing pilot.

He tried to deal with the ever-increasing burden of his work，but finally _____ and had to take a complete rest.

With the situation worsening, the army threatens to ________ if a general election is not to be held as scheduled, BBC reports.

——Why are the housing prices in big cities going up all the time?——One reason is that people are__________ into overcrowded cities in great numbers.

After_____a11 the apples，he____ the biggest one in the basket and handed it to me．