A new iPad in the market costs about ______ of a second-hand one.
A public health campaign _____ the number of heart disease deaths by 80 percent over the past three decades.
If it _____ earlier, the printing machine would not have broken down.
—Congratulations!I hear you’ve won the first prize in the singing competition.—You _____ be mistaken.I’m in the dance class.
She doesn’t speak our language, _____ she seems to understand what we say.
Oh!I can feel something _____ up my leg!It must be an insect.