A. Whatareyougoingtodothisafternoon? B. Whatareyoudoing?
A. Doyougotoschoolbyeveryday? B. Howdoyougotoschooleveryday, Belen?
A. Whatareyoudoing? B. Whatdoyoudointheevening?
A. 设计各类问题 B. 重点阐述原理 C. 突出案例分析 D. 重视动手实验
A. 对 B. 错