填空.At last ,they decided( )to Qingdao for a trip.

填空.At last ,they decided( )to Qingdao for a trip.
填空.At last ,they decided( )to Qingdao for a trip.

填空.At last ,they decided( )to Qingdao for a trip.
going
decide sth,后面也可以加动名词
或者,decide to do,
最重,他们决定去青岛旅游

to travel