His _____of the aeroplane was correct in every detail and could really fly.
A dozen ideas were considered _______ the chief architect decided on the design of the building.
-----Hi, Tina, can I use your car for a while this afternoon? ----- Sorry, _______.
“Attention, please. Whoever can answer one of my questions _____ receive a prize,” the teacher said in class.
The vegetable looking fresh in his field ______well. It’s often sold out immediately it appears in the market.
----- You shouldn’t have talked back to our teacher like that. It was awfully impolite. ----- You are right. I _________ crazy at that moment.