According to the recent research, heavy coffee drinking and heart attack is not necessarily ______ and effect.
| A．reason | B．influence | C．fact | D．cause |
—How come a simple meal like this costs so much?
—We have ______ in your bill the cost of the cup you broke just now.
| A．added | B．contained | C．charged | D．included |
— It's a long time since my mother worked here in the car factory.
— _____?
| A．Does she still enjoy working here | B．Does she wish to change a new job |
| C．What kind of job does she do here | D．Where is she working at present |
The managers discussed the plan that they would like to see _____ next year.
| A．carry out | B．carrying out | C．carried out | D．to carry out |
Don't scold him; even an experienced engineer _____ make such a mistake after all.
| A．must | B．can | C．should | D．dare |
A survey of the opinions of scientists _____ that three hours of outdoor exercise a week _____
good for our health.
| A．show; are | B．shows; is | C．show; is | D．shows; are |