1when l got home,l my mother busily in the kitchen
Asee;cook Bsaw;cooked Csee;cooking Dsaw;cooking
2Jenny hasn't come back yet. What do you think has her
Ahappened Bhappened to C folloeed Dbeen doing on
3The man a lantern in his hand ten mintues ago
Acarry Bcarries Ccarried Dhas carried
4She with her husband about money yesterday
Adiscussed Bargued Cnoticed Dfought
5l am beginning to how useful English is(real)词性转换
回答的时候,能告诉下原因吗,谢谢