Don’t trust such people _____ praise you to your face but speak ill of you behind your back.

The camera you mentioned is of high quality, but it is _______ expensive a camera _______ I can’t afford. 

Another reason _____ he didn’t mention is _____ the poor quality of the buildings worsened the damage. 

Is this the reason ______ at the meeting for his carelessness in his work?

________ is often the case with her, my mother talked about my study for at least half an hour nonstop before she drove me to school yesterday.