Mary is giving me English lessons__________my teaching her Chinese.
. Driving a car without insurance can have _____ consequences.
. The police refused to _____ the clues they were working on.
. What you have done is _____ the doctor's orders.
The shop-assistant was straight with his customers. If an article was of _____ quality, he'd tell them so.
. The continuous rain was _____ for the exceptional poor harvest