Raising children is said to be a job _______ parents receive the least formal training.
| A．in which | B．for which | C．where | D．to what |
The old man told me that this kind of plant didn’t need________．
| A．to water | B．water |
| C．watered | D．to be watered |
She has been warning________the danger of driving the car________a high speed.
| A．against；at | B．against；with |
| C．of；at | D．of；with |
________about Jane，the teacher called her parents to find out why she was often absent from school.
| A．Concerning | B．Concerned |
| C．To be concerned | D．Concern |
As modern equipment is being used widely，the factory________some of its workers with robots.
| A．represents | B．replaces |
| C．exchanges | D．reduces |
Air pollution will get worse and this will do________to people，for example，it can cause cancer.
| A．damage | B．injury |
| C．good | D．harm |