At school, some students are active ________some are shy, yet they can be good friends with one another.
—Could we meet at 3 o’clock this afternoon? ---Sorry, let’s make it __ day.
The students in our school lack quick and easy ______ to the digital resources of the library.
The manager meant ____ the workers that being 5 minutes late meant ____ the company.
The students were ____ over the ____ problem, listening to the teacher with a ____ expression on their faces.
The reason for his success is ______ he has worked very hard.