You should consider carefully              the car you want to buy is worth the money.

--Dad, I want to go out for dinner with my friends tonight.
--Keep in mind _________ you have to be home by 9:00.

I’m afraid he’s more of a talker than a doer, which is _____he never finishes anything.

-Are you familiar with the music?
-Yes. There was a time _____ this kind of music was quite popular.

I just wonder _______ that makes him so excited.

Order came that all the army supply ______ to the front before daybreak.

YaoMing, as we know,    _____   like to play basketball.

So difficult ________ it to live in an English-speaking country that I determined to learn English.

Terribly sorry, I came home at last. I _____of the supermarket ________so crowded.

—Tom, how forgetful you are! I found you left your key in the keyhole this morning.
—Oh, dear! _______.