There isn’t _____ beef in the fridge. Let’s buy some today. 

 Many people in the west make ________ a rule to buy Christmas presents for their relatives and friends. 

Some people would rather ride bikes as bike riding has _______ of the troubles of taking buses.

---Is there anything else I can do for you, Jack? --- No, thanks. I really appreciate ______ when you lent all your notes to me before the exam.

He has made a lot of films, but_____ good ones.