They will fly to Washington, ______they plan to stay for two or three days.

rld’s elderly population will exceed ____ of children by 2060, when each group____ to account for about one fifth of the population.

Helen is friendly and she always has a smile _____ her face.

The Chinese National Football Team won the game, ____ made us excited.

34. The visitor asked to have his picturetaken _________ stood the famous tower.