They use specially trained dogs to _____ their sheep at night.
—Why does Lily have few friends?—Because she thinks only of herself and doesn’t ________ other people.
—Do you think it ________ to spend 70 yuan watching that film?—Haven't you seen the film? I think it is well ________ the money.
—We've cut down our price by 40% !—But your price is still too high if taking quality into ________ .
As a student, you must ________ your teachers.
In the rush hour, traffic is so heavy that people would rather ________ a bike than ________ their cars.