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Abu Anas
As detailed below successfully solving and completing main entrance problem, which was the most complicated problems of the building ever.Is that expression is OK?
Jun 23, 2013 6:12 PM
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Answers · 2
It would be easier with context (the full sentence and the sentences before and after it), but I would say: successfully solving and completing the main entrance problem, which was the most complicated problem in the building. OR successfully solving and completing the main entrance problem, which were the most complicated problems in the building. If there is only one problem (the main entrance problem) use the first sentence. If there are multiple problems (the main entrance problem AND another problem) use the second sentence.
June 24, 2013
It's hard to say without a full sentence. However... ...which was the most complicated problem... or ...which were the most complicated problems...
June 23, 2013
Abu Anas
Language Skills
Arabic, English
Learning Language
English