Supply ?if?, ?unless?, or ?otherwise?, in the sentences given below as appropriate.
a. You must do as you are told; __________ you will be dismissed.
b. He won?t come __________ you write to him.
c. He will come __________ you write to him.
d. Write to him _______ he won?t come.
e. Don?t watch this film on TV this evening _________ you have a strong heart.
f. Don?t watch this film on TV this evening __________ you have a weak heart.