Success belongs to those who work hard. I firmly believe that, _____my own efforts, I can make it.

I can’t read these new words, so I have to__________ in the dictionary.

My boss hates interruptions,when he is trying to work

The mistake_____, I had been more careful.—But you weren’t at that time.

Can you tell me whom the play ______ in the 1990s— Sorry, I don’t know.