Never let your mind wander when driving, ______ a car crash is probable.

“Every time you eat a sweet, drink green tea.” This is _____ my mother used to tell me.

After three days’ waiting, there was a little doubt in Jake’s mind______ the police could find his lost car.

Nowadays more young people have suffered from diabetes __________ it is generally realized.  

I don’t like the way ____ he often uses to speak to me.