December 17, 2011 was a sad day for the North Koreans, ______ their top leader Kim Jung-ill passed away unexpectedly.
Everybody tried to help those people ________by the recent earthquake. ( )
It rained heavily last night. ________, much of the farm and forest land has been destroyed. ( ).
There isn't an empty table. Would you mind_____? ( )
Once you want to do something, you must get down _____it well. ( )
It was yesterday _____I went to the railway station to meet my uncle. ( )