1.--Do you regret ____100 dollars for the qingting --No ,i would gladly
have paid _____for it
A.to pay ; twice so much B.to have paid ; as much twice
C.paying ;twice as much D.having paid ; so much twice
2 All substances _____solids ,liquids ,or gases ,are entirely made up of atoms .
A .whether they B whether C .whether are they D.whether are