________， please try your best to solve the problem in time

sident announced permission for oildrilling off the shorelines, ________ the country’s effort to reduce energyimport from foreign countries

It took us several hours to make the old man ______ of the safety of traveling by air.[ ]

They discovered the cause of the fire accidentallyThey discovered it _______

Mary， you _____ be short， but now you are tall.