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Go on to do it; ahead of time Go on doing it; before time Go ahead with it; ahead of time Continue to do it; before the timE.
computers will continue to have bad effects on our social and economic institutions computers will continue to cause mass unemployment computers will lead to economic controls computers will continue to flourish, but there is no cause for pessimism
twice as hard as; In other word twice as hard as; In other words two times as hard as; In another words two times as hard as; In a word
alternative solar conventional recycled
whichever wherever whenever whether
twice harder as as twice hard as twice as hard as as twice hard
they are unaware of the consequences of what' they are doing they are reluctant to sacrifice their own economic interests time has not yet come for them to put due emphasis on it it is difficult for them to take effective measures
they are unaware of the consequences of what they are doing they are reluctant to sacrifice their own economic interests time has not yet come for them to put due emphasis on it it is difficult for them to take effective measures
have too many conflicting theories do not have enough funding to continue our research are not sure how the universe is put together have focused our investigations on the moon and planets
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