Most of the guests ______to his wedding are his close friends.

I apologized for ____ to tell you when and where the meeting will be held in advance. ----That’s all right. 

He spent every minute he could _____ spoken English.

That light rail transit line(轻轨)，started in July 2009 and _________in 2012, will be China’s longest light rail transmit line in history.

  The telephone lines were brought down by the  _____ trees and branches.