C 1) to be an expert 2) to be 3) to like 4) to work 5) to look 6) to find 7) to learn A right B fast C on something D under pressure E something difficult F a challenge G a success

Ответ:

1. C - on something

2. A - right

3. E - something difficult

4. D - under pressure

5. F - a challenge

6. B - fast

7. G - a success

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