(2010·福建厦门杏南中学高三10月月考) 27. Mr. Hall understands that maths has always been easy
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(2010·福建厦门杏南中学高三10月月考) 27. Mr. Hall understands that _______ maths has always been easy for him, it is not easy for the students.
A. unless B. since C. although D. when
试题答案
C