—Who’s that at the door?—          is the milkman.

He lived in poverty, and he couldn’t help ＿＿＿. 

Understanding the cultural habits of another nation,especially ______containing as many different subcultures as the United States,is a complex task.

—Tom failed again in the driving test. ---Why not? Tom is ____ but a fool in driving.

I would appreciate ______ very much if you could change the plan a bit to make it more workable.