— What were you up to when your parents came in?
— I＿＿for a while and＿＿some reading.
A. was playing； was going to do B. played； did
C. had played； was going to do D. had played； did
— What were you up to when your parents came in?
— I＿＿for a while and＿＿some reading.
A. was playing； was going to do B. played； did
C. had played； was going to do D. had played； did
C
play 在came in 之前已完成，而do some reading 的动作则即将开始。