Jeff’s business was originally in size, but in the last few years he has expanded it by opening scores of chain stores across America.

When shall I call ， in the morning or afternoon — . I’ll be in all day.

No one but you knows your heart is racing, so take a breath and try to ________ down.[ ]

Chinese writer Mo Yan has won the 2012 Nobel Prize in literature. —______

I can ______ some noise while I’m studying, but I can’t stand very loud noise.