Wendy usually writes computer games but ( ) (seldom,always) plays with then

Wendy usually writes computer games but (seldom) plays with then
意思是Wendy经常编写电脑游戏,但是自己却很少玩.
因为要填空的词前面用的是“但是”,表转折,所以用seldom （很少） 而不用 always （经常）