Fill in the blanks with if, unless or otherwise.
1We must hurry up; ............... we will miss the train.
Wrong!
Use "otherwise" after a warning or instruction to mean "if not."
2............... we do not hurry up, we will miss the train.
Wrong!
Use "If" to introduce the condition "we do not hurry up."
3............... we hurry up, we will miss the train.
Wrong!
Use "Unless" to mean "if we do not hurry up."
4You must work hard; ..............., you will fail the test.
Wrong!
Use "otherwise" after an instruction to mean "if you do not do that."
5............... you do not work hard, you will fail the test.
Wrong!
Use "If" before "you do not work hard" to introduce the condition.
6............... you work hard, you will fail the test.
Wrong!
Use "Unless" to mean "if you do not work hard."
7You are in love with him. Why do you want to pretend ...............?
Wrong!
Use "otherwise" after "pretend" to mean pretending that the opposite is true.
8I hope she mends her ways. ..............., she will be sacked.
Wrong!
Use "Otherwise" to mean "if she does not mend her ways."
9The vaccine has saved tens of thousands of children who would ............... have died.
Wrong!
Use "otherwise" after "would" to mean "would have died if not for the vaccine."
10Of course she is interested in him. ..............., she wouldn’t be asking about his whereabouts.
Wrong!
Use "Otherwise" to mean "if she were not interested in him."
Done.
Score: 0/10
Answers
- We must hurry up; otherwise we will miss the train.
- If we do not hurry up, we will miss the train.
- Unless we hurry up, we will miss the train.
- You must work hard; otherwise, you will fail the test.
- If you do not work hard, you will fail the test.
- Unless you work hard, you will fail the test.
- You are in love with him. Why do you want to pretend otherwise?
- I hope she mends her ways. Otherwise, she will be sacked.
- The vaccine has saved tens of thousands of children who would otherwise have died.
- Of course she is interested in him. Otherwise, she wouldn’t be asking about his whereabouts.
Notes
- She must be very intelligent; otherwise, she wouldn’t have solved this puzzle.
- Governments must ban or otherwise prevent the sale of illicit liquor.
- The train was crowded but otherwise the journey was pleasant.
- I am a bit tired but otherwise I am all right.

