On a hot afternoon, the farmer ____ down under a tree and soon fell asleep..

. Short skirts ______a few years ago, but they have come back again. 

 Father insisted Tom _____ all his homework before he went to bed.

It was decided to _____ the search when there was no hope of finding the missing girl alive.

Sometimes we should      roles so that we can understand each other’s difficulties, thus promoting our cooperation.