It was foolish of him to ______ his notes during that important test,and as a result,he got punished.
| A.stick to | B.refer to | C.keep to | D.point to | 
---What do you think of the film?
  ---Cool! Never before _____ a better one.
| A.had I seen | B.I have seen | C.have I seen | D.I had seen | 
Despite the great difficulty we had _____ out the plan, it paid off in the end.
| A.carrying | B.carried | C.to carry | D.carry | 
Faced with_____ challenges, you should believe that your courage is what makes_____ difference.
| A.the; / | B.the; a | C./; a | D./; / | 
We shouldn’t take_____ for granted that our parents will take care of us forever.
| A.this | B.that | C.them | D.it | 
—Oh no! We’re too late. The train ______.
 —______. That’s OK. We’ll catch the next train to London.
| A.was leaving | B.had left | C.has left | D.has been leaving |