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Grammar in Action Complete each sentence with the present perfect
form of the verb in parentheses.
1. The pilot has flowon
has flown this kind of airplane many times. (fly)
2. I_______
several TV programs about space exploration. (watch)
3. The astronauts will return on Thursday. They're happy because the mission
_______very successful. (be)
4. Mike and Tina_________
the bill, so we can leave any time. (pay)
5. Raul__________
optimistic about the future since the day he got his job. (be)
6. Astronauts _________
- ways to deal with weightlessness in space. (learn)
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huy huy se me olvidó haber espera que lo veo
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