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Английский язык
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II. Use English. Write sentences, use Present Perfect or Past Perfect Tense.
Напишите предложения используя где необходимо форму Present Perfect или Past Perfect Tense.
1.________________________ ( you / watch ) documentary about tigers yet?
2. The dolphins _______________ ( already/ disappear) by the time we got to the beach.
3. Dr Mavis_____________________ ( research ) how dolphins communicate since 2012.
4. The scientists ________________ ( monitor) the pair of golden eagles for three years before
their first chick hatched.
5. Jane was upset because she _______________(invest ) a great deal of time and money in the filed project.
6. Cathy was happy because she __________ ( win ) the race.