选择题
Your exercise books _____ after class. A will hand in B must be handed I C must hand in
B must be handed in 首先用被动,其次用hand in must be handed in 相信你打错了 那个hand in
答:eye exercise是"眼保健操"的意思,作这个当然要闭着眼了,所以C,D排除,close是形容词,keep +名词+形容词是使某物保持某种状态的意思, 这...详情>>
答:认真!明白是自己学,不是让你学!适当看书!详情>>