30The extra room________very useful when we had visitors

July the 13th，200l _______ a very bright night in Beijing that will never fade from memory．

I remember her face but I cannot_________where Imet her.[ ]

Mary went to the box office at lunch time, but all the tickets ____ out. [ ]

It is reported that the government has _________ the outbreak of violence by sending a large group of soldiers to police the area.