— Why do you call him Mr. Know?
— ______ he knows almost everything that we want to know.
A.So B.Or C.But D.Because
— ______ is it from your home to the bookstore?
— About 15 kilometers.
A.How far B.How much C.How long D.How many
Li Lei often takes a walk early ______ the morning.
A.at B.on C.in D.for
Let’s ______ TV, Tom.
A.watching B.watches C.watch D.to watch
He’s never ______ class.
A.late for B.arrive C.arrive late D.late
We are in the library. Please ______ quiet.
A.is B.do C.be D.are
