问题补充:
his electronic dictionary made himself sad.
A. Losing
B. Lost
C. Being lost
D. To be lost
答案:
(答案→)A. Losing
B. Lost
C. Being lost
D. To be lost
解析: 本句中的losing his electronic dictionary在句中做主语;B项不能做主语,CD两项都使用了被动语态的形式,与句义不符。句义:丢掉他的电子表让他很难过。根据句义说明A正确。