Chapter 1: Problem 4
My new co-workers (had been, were) very friendly to me until they learned my salary was considerably higher than theirs.
Chapter 1: Problem 4
My new co-workers (had been, were) very friendly to me until they learned my salary was considerably higher than theirs.
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Neither Mark nor his neighbors (is, are) able to open the doors to the patio.
Roberts already (finished, had finished) the experiments by the time Fuller made the discovery in his own laboratory.
Each of the boys (is, are) overwhelmed by the amount of work to be done.
Tom's family (is, are) considering whether there (are, is) any affordable places to go on vacation in Europe.
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