Selecting a mobile phone for personal use is no easy task because technology ________ (change) so rapidly.
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He’ll be an astronaut by the time he ________ (be) thirty.
It ________ (be) long before we know the result of the experiment.
The traffic in our city is already good and it ________ (get) even better.
This time next day they ______________ (sit) in the cinema.
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