1) ___ you don’t try hard enough, you will find it difficult to learn a language. a) if b) unless 2) ___ the snow doesn’t melt, we’ll go skiing next week. a) unless b) if 3) We may go swimming ___ the water isn’t too cold. a) if b) unless 4) ___ you know Ann, I’ll introduce you to her. a) if b) unless 5) ___ the snow melts, we’ll go skiing next week. a) unless b) if 6) ___ you don’t know Ann, I’ll introduce you to her. a) if b) unless 7) We may go swimming ___ the water is too cold. a) if b) unless 8) Paul won’t win the marathon ___ he doesn’t train hard. a) unless b) if 9) ___ you try hard enough, you will find it difficult to learn a language. a) if b) unless 10) ___ you don’t know the meaning of this word, look it up in your dictionary. a) unless b) if 11) ___ you don’t close the window, I’ll catch cold. a) if b) unless 12) ___ you don’t appologise, I’ll never forgive you. a) if b) unless 13) Paul won’t win the marathon ___ he trains hard. a) if b) unless 14) ___ you appologise, I’ll never forgive you. a) unless b) if 15) I’ll catch cold ___ you close the window. a) if b) unless 16) ___ you know the meaning of this word, look it up in your dictionary. a) unless b) if

If + Unless

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