IELTS Energy 1429: Stumble Upon This Band 9 Vocabulary
IELTS Energy English 7+
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Exploring Phrasal Verbs of Discovery
This chapter introduces four useful phrasal verbs related to discovery: 'run across', 'pick up on', 'happen upon', and 'stumble upon'. It explains their formality and context of use, concluding with information about an online course and a rewards program.
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