![solar impulse](https://s3.amazonaws.com/smrtenglish.com/core/ENGL120AVIA/unit12/12-3g1.jpg)
The Solar Impulse is taking off tomorrow.
Review of Phrasal Verbs (From Grammar 11-3)
Phrasal verbs are mainly used in spoken English and informal texts.
Phrasal verbs are verbs used with a particle (a preposition or an adverb).
Some meanings of phrasal verbs are easy to guess: put on, sit down.
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