Complex sentence: In 1899 Strachey took the Christ Church scholarship examination, wanting to get into Balliol College, Oxford, but the examiners determined that Strachey's academic achievements were not remarkable and were struck by his "shyness and nervousness".
Split into simpler sentences: In 1899 Strachey took the Christ Church scholarship examination, wanting to get into Balliol College, Oxford. Moreover, they were struck by his "shyness and nervousness".