The key answer of exercise 2
The key to exercise solutions in chapter 6c - Grammar in use for the textbook On Screen B1+/B2 - Student's Book with authors Virginia Evans and Jenny Dooley from Express Publishing
Question
Work in pairs. How do these sentences differ in meaning? Check in the Grammar Reference.
Answer
All three sentences refer to a real or probable situation in the future.
Unless = If not, when emphasises more the time sth is done whereas if / unless express a hypothesis.
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