Although he is old, he’s very . However, when he was young, he was very lazy.
—We’d better_______ if we want to be on time. —OK.
Was it midnight_________ you fell asleep while reading with the candle still burning?
She spoke very confidently because she wanted to make a great___________ on her employer.
The achievements of the greatest minds in science could never have been reached________ the patient work of hundreds of others.
The plans should be drawn as ________as possible,showing all the measurements.