单项选择 1·I often hear her ___ in the next room.A`sings B`singing C`to sing D`is singing

单项选择 1·I often hear her ___ in the next room.A`sings B`singing C`to sing D`is singing
2`My uncle`s job is ____ machines in the factory.
A`mends B`mend C`mended D`to mend
3`Nobody in family_____rice for lunch
A`like B`likes C`is liking D`is like