Was it in 1999 _____ he was still at middle school _____the boy became an expert at computer?
A. when; where B. that; where
C. when; that D. that; when
Was it in 1999 _____ he was still at middle school _____the boy became an expert at computer?
A. when; where B. that; where
C. when; that D. that; when
D