On April 14, 2010, many people dressed in black with white flowers ______ their chests observed three minutes of silence in memory of the victims in Yushu Earthquake .

A. pinned in           B. pinned to        C. being pinned in      D. to be pinned to

On April 14, 2010, many people dressed in black with white flowers ______ their chests observed three minutes of silence in memory of the victims in Yushu Earthquake .

1. A.
   pinned in
2. B.
   pinned to
3. C.
   being pinned in
4. D.
   to be pinned to

 On April 14, 2010, many people dressed in black with white flowers ______ their chests observed three minutes of silence in memory of the victims in Yushu Earthquake .

A. pinned in           B. pinned to        C. being pinned in      D. to be pinned to

On April 14, 2010, many people dressed in black with white flowers ______ their chests observed three minutes of silence in memory of the victims in Yushu Earthquake .

A. pinned in           B. pinned to        C. being pinned in      D. to be pinned to

On April 14, 2010, many people dressed in black with white flowers ______ their chests observed three minutes of silence in memory of the victims in Yushu Earthquake .