It’s hard for him playing against me. I’ve got nothing to play for, but for him, he needs to win so __________. 

--How about this dress, sir? --It’s a little expenseive, and ____, its color doesn’t suit me.

It’s true that the old road is less direct and a bit longer. _______, they don’t like to take the new  one.

As is known to all language learners, newly learnt words will soon be forgotten unless ______ used in everyday communication.

It is well known to all that a machine needs fuel to run;    ,man needs food to live on.