0 Hi, 02br 00I think it's "was", because "knowledge" is an uncountable noun. 050010id1
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01cite10Peaceblinkfriend12cite10I was actually using the same dictionary as you, Yoong Liat, the Cambridge's Advance Learner's Dictionary. I mistook 11b10 12b10as countable or uncountable. I apologise for that. Thank you. 12br10The nam
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10Ernest12br
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