Affirmative
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1)
The professor students in mathematics for a semester by the end of the course. (to tutor)
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2)
Scientists climate change for over a hundred years by the end of this century. (to research)
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3)
The hikers different hiking trails for a month by next summer. (to explore)
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4)
The company for fifty years in 2034. (to operate)
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5)
They for environmental causes for five years by the end of the year. (to advocate)
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6)
My neighbors vegetables in their garden for six months by the end of the season. (to grow)
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7)
By the end of the month, he lectures on philosophy for ten years. (to give)
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8)
By the time the lecture starts, we the topic for an hour. (to discuss)
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9)
I pottery for six months when you visit. (to make)
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10)
Crystal the video for three hours by the time you finish your report. (to edit)
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11)
My husband and I for our flight for five hours when we leave. (to wait)
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12)
Rita in Abu Dhabi for a decade next year. (to live)
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13)
Carl to work by bike for a year by next month. (to commute)
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14)
When the concert ends, we to music for five hours. (to listen)
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15)
When they arrive, they for three days. (to travel)
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16)
Joan for ten years by next winter. (to ski)
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17)
By next year, Miranda young artists for five years. (to mentor)
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18)
By the time you read this, I the new software for several weeks. (to programme)
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19)
She at the community center for four years by next summer. (to volunteer)
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20)
By the time you arrive, we for over an hour. (to wait)
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21)
By next autumn, they the wedding for a year. (to plan)
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22)
Sue the survey for several days by the end of the week. (to conduct)
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23)
We for a year by the time we finish the project. (to collaborate)
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24)
By the time Jonas arrives, he for ten hours. (to fly)
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25)
My brother the furniture for two hours when I arrive. (to assemble)
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26)
By the time the party starts, they the hall for two days. (to decorate)
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27)
Laura her own clothes for a decade by the end of the month. (to sew)
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28)
My kids horses for three years next spring. (to ride)
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29)
Mr. Jones at the university for fifteen years by next year. (to teach)
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30)
When I finish work, you for three hours. (to talk)
