Answer — Exercise Practice 1
06 - Language focus 1·Cutting Edge Upper-Intermediate - Student's Book
Câu hỏi
Complete the sentences below with the correct form of the verbs in brackets (positive or negative). Use the timeline to help you.
Câu trả lời
- had invented; hadn’t learnt
- had been invented; hadn’t yet made
- have discovered; haven’t found
- will probably have found; won't have discovered
- probably won’t have learnt; will probably have learnt
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